The mineralogical analysis of a rock can tell us what the rock is made of, the detailed geological history of the rock, the temperature and pressure conditions under which it formed, and when the rock formed.
In a mineralogical analysis of rocks, the minerals that the rock is composed of are identified through a microscope. Mineralogy is the study of the chemical composition and structure of minerals. A mineral is a naturally occurring substance formed from geological processes that have crystallized out of a solution.
Specifically, mineralogical analysis involves examining the minerals in the rock and their relationships to each other. This can help us determine what the rock is made of and what kind of environment it formed in (temperature and pressure). Additionally, examining the relationship between minerals can provide clues about the geological history of the rock. By analyzing radioactive isotopes, we can also estimate when the rock formed.
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which natural hazard occurs more often at active plate boundaries?
Answer:
The most often occurrence is volcanos.
Two types of plates, convergent and divergent can create an active volcano site.
Dry climates are divided into two types according to moisture. These are A) deserts and tundra. B) deserts and steppe. C) chaparral and tundra. D) steppe and chaparral.
Dry climates are divided into two types according to moisture. These are deserts and steppe
What are dry climates?
Dry climates are defined as areas where the weather is usually dry and there is little precipitation. Dry climates are usually characterized by limited rainfall and high temperatures. According to moisture, dry climates are divided into two types: deserts and steppe.
Here are some characteristics of each:Deserts: The arid desert is the driest of all the climates. They usually get less than ten inches of rain per year. Deserts are classified as having extremely low moisture levels.
There are a few different kinds of deserts, including hot and dry, semiarid, coastal, and cold.Steppe: This climate is known for its grassy, open plains. It receives more rain than the desert but less than the humid areas. There are two kinds of steppe climates: cold and semiarid.
There is enough rainfall in these areas to support grass and scrub, but not enough to support forests. Chaparral and tundra are not dry climates, as they both receive adequate rainfall for their specific vegetation. Hence, the correct option is B) deserts and steppe.
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considering how magma composition, temperature, water content, and volatile content affect its viscosity, associate each of the volcanoes described in this activity with the type of eruption it should produce, or indicate whether the described characteristic is not related to eruption style. drag the appropriate items into their respective bins.
To answer this question, first we need to understand the factors that affect a volcano's eruption type. These factors are magma composition, temperature, water content, and volatile content. Based on these factors, we can associate each volcano with the type of eruption it should produce or indicate whether the described characteristic is not related to eruption style.
Volcano Magma Composition Temperature Water Content Volatile Content Eruption Type
A Felsic High Low High Explosive
B Intermediate High Moderate Moderate Explosive
C Mafic Low High Low Effusive
D Felsic High High High Explosive
As seen in the table above, we can associate each volcano with the type of eruption it should produce or indicate whether the described characteristic is not related to eruption style.
Volcano A has felsic magma composition, high temperature, low water content, and high volatile content. This combination of factors indicates that Volcano A should produce an explosive eruption.
Volcano B has intermediate magma composition, high temperature, moderate water content, and moderate volatile content. This combination of factors indicates that Volcano B should also produce an explosive eruption.
Volcano C has mafic magma composition, low temperature, high water content, and low volatile content. This combination of factors indicates that Volcano C should produce an effusive eruption.
Volcano D has felsic magma composition, high temperature, high water content, and high volatile content. This combination of factors indicates that Volcano D should also produce an explosive eruption.
Therefore, we can say that magma composition, temperature, water content, and volatile content are all important factors that determine a volcano's eruption type.
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Where do tectonic processes continually generate new ocean seafloor at?
Tectonic processes continually generate new ocean seafloor at the mid-ocean ridge, which is a continuous submarine mountain chain extending through all the ocean basins.
The mid-ocean crest is substantially composed of a central rift vale, two resemblant rift sides, and a more restrained seabed on either side of the crest. As the Earth's Tectonic plates sluggishly move piecemeal, magma rises up through the rift vale and cools to form new oceanic crust.
This process is known as seafloor spreading, and it's driven by convection currents deep within the Earth's mantle. The new crust pushes the aged crust down from the mid-ocean crest, creating a nonstop cycle of seafloor growth.
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What happen to the surface area of exposed rock if a rock is fractured?
A) there are more pieces, but the surface area does not change
B) The surface area does not change because the volume does not change
C) The surface area increases as the rock is fractured
D) The surface area decreases as the rock is fractured
E) both a and b
The surface area increases as the rock is fractured. Therefore the correct option is option C.
Rock fracture is the mechanical breakdown of rock due to stress. The stress can be tectonic or man-made, such as blasting. When rock fractures, it breaks into smaller pieces, which are known as rock fragments or rock blocks. Rock fracture has a significant impact on the surface area of rock.
When rock is fractured, the surface area of the rock increases. This is because a single rock breaks into smaller fragments, each with its own surface area.
Therefore, the correct answer to the given question is: The surface area increases as the rock is fractured.
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what makes earthquakes like the mineral, virginia quake in 2011 so dangerous? choose all that apply.
Earthquakes like the Mineral, Virginia quake in 2011 are dangerous due to their unpredictability and potential to cause damage to buildings and infrastructure.
These earthquakes occur when the underlying bedrock is disturbed, causing shock waves to propagate through the earth's crust. So, when energy is released from tectonic plates that are in motion. The shock waves generated by earthquakes can cause the ground to shake and move, leading to damage to buildings and infrastructure. In some cases, these shock waves can trigger landslides or tsunamis, leading to further damage and loss of life. The strength and duration of an earthquake can vary depending on a number of factors, including the size of the fault that ruptures, the amount of energy released, and the local geology of the area.
Overall, earthquakes are a natural and unavoidable hazard that can have significant impacts on human life and society. By understanding the underlying causes of earthquakes and implementing effective measures to prepare for and respond to them, we can reduce the risks and minimize the impacts of these events.
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A function, f. is defined by f(x,y) = 3x2 - 4y. What is the value of f(3,2) ?
F(3,2) is assigned a value of 19.
What are the different sorts of function?A relationship between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relation between inputs in which each input is connected to precisely one output. Each function has a range, codomain, and domain. The usual way to refer to a function is as f(x), where x is the input.
A function called f is defined by the notation y=f(x). This should be understood as "y is indeed a function of x." The input variable, or outcome variable, is represented by the letter x. The output value, also known as the dependent variable, is denoted by the letters y, or f(x).
f(x, y) = 3[tex]x^{2}[/tex] - 4y = 3*3∧2 - 4*2
= 3*9- 8 so, 27-8=19
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where is the kamchatka peninsula, home to 29 active volcanoes?
Answer:
Explanation:
The Kamchatka Peninsula is located in the far eastern part of Russia, in the Russian Far East. It is situated between the Sea of Okhotsk to the west and the Pacific Ocean to the east. The Kamchatka Peninsula is known for its stunning natural beauty, abundant wildlife, and numerous active volcanoes, with a total of 29 active volcanoes located on the peninsula.
Which of the following statements is true?
a) A region does NOT need to be distinguishable from other areas
b) Regions exist only at some scales
c) Financial networks are not functional regions
d) A region has to be a continuous area
The statement that is true is b) Regions exist only at some scales.
What are regions ?Regions are spatial areas that share common characteristics, whether it be cultural, economic, or physical. However, the definition and boundaries of a region can vary depending on the scale of analysis.
For example, a city can be considered a region at the local scale, but when viewed from a national or global perspective, it may be just a small part of a larger region, such as a state or country. A region typically needs to be distinguishable from other areas to be meaningful and useful in analysis and decision-making.
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describe one environmental problem in a marine ecosystem that could result from an oil spill.
An environmental problem in a marine ecosystem that could result from an oil spill is the contamination of the water surface with oil. The oil spill could cause harm to marine life and coastal regions as well.
Marine ecosystems are more vulnerable to oil spills because they are home to various species of marine life, which are negatively affected by the toxic chemicals contained in oil. Aside from that, oil spills have been known to contaminate vast regions of ocean water, making it challenging for the marine ecosystem to recover from the damage.
In most cases, oil spills cause long-term harm to marine animals by causing a variety of complications, such as skin irritation, gastrointestinal problems, and heart disease. Some animals may also develop reproductive and developmental issues as a result of the oil spill.
Also, oil spills can cause damage to coastal regions and surrounding areas, which may take a long time to recover from the disaster. Coastal ecosystems are the most likely to be affected by oil spills since they are the first to come into contact with the spilled oil.
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which of the following metamorphic rocks is characterized by the segregation of light- and dark-colored minerals into thin layers or bands? garnet hornfels gneiss quartzite slateA) Quartzite
B) Granitic gneiss
C) Slate
D) Garnet hornfels
The metamorphic rock characterized by the segregation of light- and dark-colored minerals into thin layers or bands is gneiss.
What are metamorphic rocks? Metamorphic rocks are a type of rock that has been altered from its original state by high heat, high pressure, or a combination of both.
These changes occur deep beneath the surface of the earth and can result in the formation of entirely new rock types. Metamorphic rocks are classified based on their texture and composition.
Foliated and non-foliated are the two types of metamorphic rocks. Quartzite, granitic gneiss, slate, and garnet hornfels are examples of metamorphic rocks. Gneiss, a metamorphic rock, is characterized by the segregation of light- and dark-colored minerals into thin layers or bands. Answer: B) Granitic gneiss
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In weighing the benefits cities derive from gentrification against the social and human costs, where do you think the balance lies?
Since autotrophic organisms require inorganic carbon for growth and heterotrophic organisms require organic carbon for growth, we can say that?
Since autotrophic organisms require inorganic carbon for growth and heterotrophic organisms require organic carbon for growth, we can say that autotrophic organisms are self-sufficient, while heterotrophic organisms depend on others to live.
The growth of autotrophic organisms is sustained by inorganic carbon compounds, which they convert into organic carbon molecules for energy production.
Autotrophs are responsible for generating their own food, while heterotrophs must consume food from other organisms for their nutrition and growth.
The key difference between autotrophic and heterotrophic organisms is that autotrophic organisms generate their own food, while heterotrophic organisms consume other organisms to live.
In general, autotrophs are considered to be the foundation of the food chain since they are the first to produce organic carbon molecules from inorganic carbon molecules.
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in terms of population where does europe rank among all continents?
Russia has a history of conflict and war with other nations. Two of the most notable battles were World War II and the Cold War. While both conflicts are technically considered "wars,
there was a vast difference in the reasoning behind each one and the way they were fought. Using complete sentences, explain the difference between Russia's part in World War II and the Cold War. Compare and contrast what led to Russia's Involvement, what kinds of weapons were used, and what the outcome was. Be sure to use correct spelling and
punctuation.
PLS HELP! 50 POINTS!
Answer:
Russia's involvement in World War II and the Cold War differed significantly in terms of their reasons for participation, the types of weapons used, and the outcome of each conflict. In World War II, Russia joined the Allied forces in their fight against Nazi Germany after Germany broke a non-aggression pact between the two countries and invaded Russia. Russia's involvement in the war was crucial, as they were able to push back German forces and ultimately help secure victory for the Allies. The weapons used during World War II were mainly conventional weapons, such as rifles, tanks, and planes.
On the other hand, the Cold War was a conflict between the United States and the Soviet Union (which included Russia) that lasted from 1947 to 1991. The conflict was largely ideological, with the two superpowers fighting for global dominance in a non-violent manner. The weapons used during the Cold War were mainly nuclear weapons, which were used as a deterrent against one another. The outcome of the Cold War was a victory for the United States, as the Soviet Union collapsed and the United States emerged as the sole superpower.
In conclusion, while both World War II and the Cold War involved Russia, they were vastly different in terms of their reasons for participation, the types of weapons used, and the outcome of each conflict. World War II was a conventional war fought against Nazi Germany, while the Cold War was a non-violent ideological conflict between the United States and the Soviet Union. The weapons used in World War II were mainly conventional, while the Cold War involved the threat of nuclear weapons. Ultimately, the Allies emerged victorious in World War II, while the United States emerged as the sole superpower after the collapse of the Soviet Union in the Cold War.
the difference between renewable and nonrenewable resources is that nonrenewable resources require
Answer:
Explanation:
The difference between renewable and nonrenewable resources is that nonrenewable resources require millions of years to form and are being depleted at a faster rate than they are being replenished, while renewable resources are replenished naturally and can be sustained over time. Nonrenewable resources include fossil fuels such as coal, oil, and natural gas, as well as minerals and metals that are mined from the earth. These resources are finite and once they are depleted, they cannot be replaced. In contrast, renewable resources include solar, wind, hydro, geothermal, and biomass energy, as well as resources such as timber, water, and crops that can be regrown or replenished naturally. These resources are replenished over time and can be sustained for future generations. The use of renewable resources is seen as a more sustainable and environmentally friendly approach to resource management, as they have a lower impact on the environment and can be used indefinitely without running out.
What does a porphyritic texture indicate about the cooling history of an igneous rock?
The rock cooled entirely on the Earth's surface in a region that regularly varied between high and low temperatures.
The rock cooled entirely underground, first forming the phenocrysts and then forming the groundmass out of different minerals.
The rock began cooling on the Earth's surface, but then was buried under the Earth's surface where it finished cooling.
The rock began cooling under the Earth's surface, but then was moved to above the Earth's surface where it finished cooling.
The rock first began cooling under the Earth's surface, which formed the groundmass. It finished by solidifying the phenocrysts on the Earth's surface.
The porphyritic texture of an igneous rock indicates that the rock began cooling underground, first forming the phenocrysts and then forming the groundmass out of different minerals.
Porphyritic texture is a texture in which a rock contains two distinct crystal sizes. The larger crystals, known as phenocrysts, are usually about 1 to 10 centimeters in diameter and are embedded in a fine-grained matrix known as a groundmass. Porphyritic rocks may be either intrusive (plutonic) or extrusive (volcanic) in origin.
The cooling history of an igneous rock can be revealed by its texture. Porphyritic texture indicates that the rock began cooling underground, first forming the phenocrysts and then forming the groundmass out of different minerals. The phenocrysts continue to form as the rock cools and solidifies on the Earth's surface.
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what features in the the sedimentary or volcanic rock would you look for to tell u overturne limb
The following are the features in the sedimentary or volcanic rock that would be looked for to tell overturned limb:
1. Sedimentary rock
In sedimentary rocks, the upper surface is usually a layer of rock that has been eroded and exposed. This is commonly referred to as the "upper bed." The lower bed is located beneath the upper bed and is typically more resistant to erosion. The degree of weathering of the two beds can be used to determine whether or not a rock formation has been overturned.
2. Volcanic rock
In volcanic rocks, one can look for fractures and other structural features that may indicate that the rock has been overturned. Another method used to determine whether or not a volcanic rock has been overturned is to look for the presence of vesicles.
Vesicles are gas-filled cavities that are formed during volcanic eruptions. They can be used to determine the orientation of the rock formation.
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for people living on the edge of subsistence, climate changes brought about by the made life even more precarious in the tumultuous century following the reformation
The tumultuous century following the reformation was a difficult period for those living on the edge of subsistence. Climate change contributed to further hardship and insecurity.
Extreme weather events like floods, droughts, and cold spells had a direct impact on subsistence crops, meaning people had to compete for increasingly scarce resources. War and famine also disrupted farming activities and caused food shortages.
In addition, rising temperatures meant that previously suitable farming land became too hot and dry for cultivation. This led to an increase in poverty and displacement, as people were forced to move to find new sources of food and income.
The precariousness of life on the edge of subsistence was exacerbated by climate change, with vulnerable populations feeling the effects of a changing climate most acutely.
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which of the following territorial forms does not typically contribute to difficulty in national governance? please choose the correct answer from the following choices, and then select the submit answer button. answer choices an elongated state an approximately hexagonal or circular state an exclave a fragmented state consisting of multiple islands
The correct answer is an approximately hexagonal or circular state. This type of state does not typically contribute to difficulty in national governance because it is less likely to have long and difficult to control borders, and its central location makes it easier for the government to govern.
Additionally, its population will typically be more centralized, which makes communication and governance easier.
In contrast, an elongated state, an exclave, and a fragmented state consisting of multiple islands can all contribute to difficulty in national governance.
An elongated state can have long borders and may be difficult to defend and patrol. An exclave is a territory which is disconnected from the main state and therefore more difficult to control and govern.
Lastly, a fragmented state consisting of multiple islands is challenging to govern as communication and travel between the islands is more difficult.
In conclusion, an approximately hexagonal or circular state does not typically contribute to difficulty in national governance, whereas the other three forms can present a challenge for national governance.
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Subtropical high-pressure system in the Atlantic
The western side of subtropical high pressure cells
a) corresponds with Earth's major desert regions.
b) remains in the same position all year; i.e., they do not migrate with the high Sun.
c) has strong subsidence resulting in dry, semi-arid and arid surface conditions.
d) produces surface winds that pass over warm ocean currents.
e) tends to be cool and moist.
Subtropical high-pressure system in the Atlantic. The western side of subtropical high pressure cells has strong subsidence resulting in dry, semi-arid and arid surface conditions. Option C is the correct answer
Subtropical high-pressure systems are those that are formed in a stable area of the atmosphere around 30 degrees north and south of the equator. The western side of these cells is arid, semi-arid, or arid because of the strong subsidence it undergoes due to the descending air in this zone.
Subtropical high-pressure systems are those that are formed in a stable area of the atmosphere around 30 degrees north and south of the equator. As the atmosphere rises at the equator, it cools and then sinks towards the poles, forming a high-pressure zone in the subtropical regions as the atmosphere warms up.
These zones are usually characterized by stable atmospheric conditions and clear skies, resulting in a lack of moisture in the area. Hence, these zones are associated with arid, semi-arid, or arid conditions.
Subtropical high-pressure systems' western sides are characterized by arid, semi-arid, or arid conditions, according to the above explanation. Therefore, option C is correct.
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The correct option among all the options given in the question is the third option, that is c) has strong subsidence resulting in dry, semi-arid and arid surface conditions.
Subtropical high-pressure system in the Atlantic is a region of high atmospheric pressure situated close to the latitudes of the Tropics. These high-pressure systems occur in a belt that stretches around the world from latitudes of about 20° to 40° north and south of the equator. The western side of subtropical high pressure cells have strong subsidence resulting in dry, semi-arid and arid surface conditions.
In these regions, most of the year is hot and dry. However, in certain locations, there can be enough moisture to support either a desert or a savanna-like environment. For example, the subtropical high-pressure system on the eastern side of the Andes Mountains of South America produces deserts, whereas the one on the western side produces moisture as the trade winds ascend the mountains and create rain clouds.
Apart from the third option, other options are also associated with subtropical high-pressure cells in the Atlantic. The first option states that it corresponds with Earth's major desert regions, which is partly true. The second option that is b) remains in the same position all year; i.e., they do not migrate with the high Sun, is not correct. The position of high-pressure cells shifts with the Sun. The fourth option is d) produces surface winds that pass over warm ocean currents, which is also true. And the last option is e) tends to be cool and moist, which is not correct.
So, the correct option is c) has strong subsidence resulting in dry, semi-arid and arid surface conditions.
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what are the effects on metamorphic minerals and textures of temperature confining pressure and differential stress
Metamorphic minerals and textures are significantly affected by temperature, confining pressure, and differential stress. Temperature affects the rate of metamorphic reactions, which affects the mineralogy of the metamorphic rock.
High temperatures can cause dehydration, recrystallization, and metasomatism of the minerals. Confining pressure has an important role in metamorphism, providing the force to cause recrystallization and transformation of the minerals. As pressure increases, the minerals become more densely packed.
Differential stress affects the shape and size of the minerals and the overall texture of the rock. It causes minerals to become elongated and aligned in certain directions, creating a foliation. Additionally, differential stress can cause shearing and fracture of the minerals. The combination of temperature, confining pressure, and differential stress is important for understanding the formation of metamorphic rocks.
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a stream in an area under development/urbanization. which site appears to be the most likely to have a construction site immediately upstream from it? write your claim, evidence, and reasoning.
The most likely site to have a construction site immediately upstream from it is one that is closer to the urban center. This is because urbanization often includes the development of infrastructure and construction projects closer to the city center.
Your claim: A stream located closer to the urban center is more likely to have a construction site immediately upstream from it.
Evidence: Urbanization often includes the development of infrastructure and construction projects closer to the city center. Therefore, a stream located closer to the urban center would be more likely to have a construction site.
Reasoning: Since urbanization usually involves the construction of infrastructure and projects closer to the city center, the stream closer to the urban center is more likely to have a construction site immediately upstream from it.
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at the shore, why does the sea level often drop dramatically before a tsunami arrives?
Answer:
Tsunami waves are often preceded by coastal waters being dragged out when the trough arrives before the crest.
Explanation:
Which countries lost their territories in the mandate system?
Answer:
Explanation:
Several countries lost their territories in the mandate system established after World War I. The mandate system was created by the League of Nations to administer the former territories of the defeated Ottoman Empire and the colonies of the defeated German Empire. The mandate system allowed for these territories to be governed temporarily by other countries until they were deemed ready for self-rule.
The countries that lost their territories in the mandate system include:
Ottoman Empire: After the collapse of the Ottoman Empire, its former territories in the Middle East were placed under various mandates, including those of France, the United Kingdom, and Italy.
Germany: The German colonies in Africa and the Pacific were placed under mandates, with the territories in Africa being administered by France, the United Kingdom, and South Africa, and those in the Pacific being administered by Australia, Japan, and New Zealand.
Austria-Hungary: The former territories of Austria-Hungary were divided and placed under various mandates, including those of France, the United Kingdom, and Italy.
Russian Empire: The former territories of the Russian Empire in the Middle East and Central Asia were placed under mandates, with the territories in the Middle East being administered by France and the United Kingdom, and those in Central Asia being administered by the Soviet Union.
Overall, the mandate system had a significant impact on the geopolitical landscape of the world and the development of the nations that emerged from these territories.
from the two seasonal curves shown, greater precipitation occurs at all but one of the reporting stations during . this could be due to the passing of storm systems at that time of the year in addition to orographic uplifting. a. summer b. winter g
The precipitation patterns of the two seasonal curves shown indicate that more precipitation occurs at all but one of the reporting stations during the summer season.
Here, correct option is A. summer.
This can be attributed to multiple factors, including the passing of storm systems, which is more frequent during this time of the year, as well as orographic uplifting, which is caused by the interaction of prevailing winds with mountains or hills.
As the air is forced upwards it cools, causing moisture to condense out of the atmosphere and form clouds and eventually rainfall. This is a common phenomenon in mountainous areas, and explains why there is more precipitation during the summer months in these regions.
Therefore, correct option is A. summer.
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Complete question is :-
From the two seasonal curves shown, greater precipitation occurs at all but one of the reporting stations during . this could be due to the passing of storm systems at that time of the year in addition to orographic uplifting.
a. summer
b. winter
c. spring
d. rainy.
does mercury show any signs whatsoever of geologic activity?
As of now, Mercury shows signs of the past geologic activity. However, it is not displaying any sort of geologic activity as of today. Mercury is a planet that is closest to the Sun and its diameter is small as compared to the Earth.
The gravitational pull of Mercury is weak and it has a less dense mantle. These features contribute to its being geologically inactive today.However, there are still some signs that point to the past geological activity of Mercury. The planet has seen numerous meteor impacts in its past which have created craters on its surface.
Additionally, there are ridges and faults on its surface that were formed during the time when the planet was cooling down. These features suggest that the planet was once more active geologically, but is now dormant. Hence, we can conclude that Mercury shows signs of the past geologic activity but is not displaying any sort of geologic activity as of today.
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What are five other levels of organization that ecologists study from smallest to largest aside from studying individual species?
The five other levels of organization that ecologists study from smallest to largest aside from studying individual species are Population, Community Ecosystem, Biome, Biosphere.
1. A population is a group of individualities of a species living in the same place at the same time. It includes all the individualities of one species being in the same area. 2.A community is a group of different populations of species living together in the same area. It includes all the species in an area and how they interact with one
another. 3. An ecosystem is a community of species interacting with each other and their physical environment It includes all the species, their relations and the physical environment in a given area. 4. Biome A biome is a large geographic area characterized by particular types of shops and creatures, as well as by its climate 5. The portions or the
regions where organisms are to be found are collectively called as the biosphere. Thus, it can also be said that all the biosphere is the sum of all the ecosystems on the Earth
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The question refers to the following description.
On the volcanic, equatorial West African island of Sao Tomé, two species of fruit fly exist. Drosophila yakuba inhabits the island's lowlands, and is also found on the African mainland, located about 200 miles away. At higher elevations, and only on Sao Tomé, is found the very closely related Drosophila santomea. The two species can hybridize, though male hybrids are sterile. A hybrid zone exists at middle elevations, though hybrids there are greatly outnumbered by D. santomea. Studies of the two species' nuclear genomes reveal that D. yakuba on the island is more closely related to mainland D. yakuba than to D. santomea (2n = 4 in both species). Sao Tomé rose from the Atlantic Ocean about 14 million years ago.
If a speciation event occurred on Sao Tomé, producing D. santomea from a parent colony of D. yakuba, then which terms apply?
I. macroevolution
II allopatric speciation
III. sympatric speciation
Answer:
a
Explanation:
sorry
the equator runs very close to what river in south america?
The equator runs by the Amazon river in South America.