caused by the intense heat that comes from the surfaces of streets roofs of buildings. Iker convinces his teacher to do an experiment. V of other students, Iker builds a rooftop garden to cover one half of building. For one semester, Iker records the air temperature on the building with the rooftop garden and the half of the building witho garden. He finds that the average temperature near the rooftop ga The average temperature away from the garden is 29°C.Iker is worried about global warming. He believes that much of the problem is caused by the intense heat that comes from the surfaces of streets and the roofs of buildings. Iker convinces his teacher to do an experiment. With the he of other students, Iker builds a rooftop garden to cover one half of his school building. For one semester, Iker records the air temperature on the half of the building with the rooftop garden and the half of the building without the garden. He finds that the average temperature near the rooftop garden is 23° The average temperature away from the garden is 29°C.

Answer:

D

Explanation:

Offspring receive genes from both parents, they don't always have a recessive or dominant train but if they do have a dominant trait, it will always show while the recessive will only show if there is no dominant trait. For example: DD, Dr, and rr (D= dominant r = recessive)

Answer:D

Explanation:

i did this one too and it’s right

Answer:

epic

Explanation:

hakuna matata

Answer:

The answer is B

Explanation:

honestly do

Answer: A. Raindrops act like a prism and separate the white light in sunlight.

Explanation:

The reason for the formation of rainbow is option A. Raindrop acts like a prism and separate the white lite into different colors.

Rainbow is an arc of colors from a white light ray which can be formed by the separation of component colors from white light by the combination of reflection, and refraction.

White light absorbs all colors and reflect all of them. That is why a white object is seen white the mix of all colors. When the white light passes through a raindrop, it gets refracted, the refracted light then reflects from the drop and undergo one more refraction and that make the component colors  in the form a bent or arc.

Therefore, raindrop is acting like a prism to separate the white light into its component colors.  Hence, option A is correct.

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.

Answer:

Genes on the X chromosome are said to be X-linked. X-linked genes have distinctive inheritance patterns because they are present in different numbers in females (XX) and males (XY). X-linked human genetic disorders are much more common in males than in females due to the X-linked inheritance pattern.

Explanation:

Answer:

The answer will be ：

In year 1869

Russian scientist named Dmitri Mendeleev

Chart called Mendeeleves periodic table

increasing atomic masses

physical and chemical properties.

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Explanation:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.

Answer:

chloroplasts

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll

Explanation:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

The carbon and silicon have in common that they belong to the same column (family), therefore they have the same number of total electrons. So, option B is correct.

Carbon's closest analogue is silicon. Silicon and carbon are both tetravalent atoms that primarily form covalent (non-ionic) compounds. However, aside from the fact that both elements "can form four covalent bonds," there is surprisingly little in common between them.

Carbon has an atomic number of 6 and an electronic configuration of 2, 4. Silicon has an atomic number of 14 and an electronic configuration of 2, 8, 4. Because both elements have the same number of valence electrons, they are classified as being in the same group.

Thus, option B is correct.

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Answer:

Copper(i) nitrate

Explanation:

That is the correct name.

Answer:

Molecular Formula

Explanation:

Answer:

415.401g

Explanation:

1 mol of CaCl = 75.5g

5.502mol of CaCl = xg

so 5.502 × 75.5 = 415.401g

Answer:

671080887.616

Explanation:

Answer:

shear adhesion

Explanation:

edge

Shear adhesion sticks best when it is pulled down parallel to the surface.

Shear adhesion is defined as the ability  of tape due to which it resists the static forces which are applied in same plane as in backing.It is usually expressed in terms of time required  by a given weight for an amount of tape to become loose  from a vertical plane.

Molecular weight between two entanglements is the controlling factor of shear adhesion. Shear adhesion is affected by the following parameters which areas follows:

1)Tg of adhesive - Shear adhesion increases as Tg rises up to a certain temperature which is less than the room temperature.

2)  Tan delta  minimum value of adhesive- It is found that shear adhesion improves by an increase in tan delta minimum value.

3)Adhesive polarity- It is an important factor which affects adhesion  such as tack,peel and shear.Adhesion performances are improved by introducing polar ingredients in the formulation.

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Answer:

Calcium carbonate is a molecule that contains one atom of calcium, one atom of carbon, and three atoms of oxygen.

:)

Answer:

i thinks its one carbon atom

Explanation:

Answer:

124g  

Explanation:

The concept stoichiometry is used here to determine the mass of Na₂O. The grams of Na₂O required to produce 1.60 x 10² grams of NaOH is  124 g.

The stoichiometry is an important concept of chemistry which help us to use the balanced chemical equation to calculate the amounts of reactants and products. The stoichiometric coefficient is the number of molecules that can participate in the reaction.

The balanced equation is:

Na₂O + H₂O → 2NaOH

1 mole of Na₂O is required to react with 1 mole of  H₂O to give 2 moles of NaOH.

62 g of Na₂O produces 80 g of NaOH.

1 g of NaOH is produced from 62/80 g of Na₂O .

1.6 × 10² g of NaOH will require 62 × 1.6 × 10² g / 80 g of Na₂O = 124 g Na₂O

Thus the grams of Na₂O required to produce 1.6 × 10² g of NaOH is 124 g.

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Answer:

The effects of supercritical CO2 (SC-CO2) on the microbiological, sensory (taste, odour, and colour), nutritional (vitamin C content), and physical (cloud, total acidity, pH, and °Brix) qualities of orange juice were studied. The CO2 treatment was performed in a 1 litre capacity double-walled reactor equipped with a magnetic stirring system. Freshly extracted orange juice was treated with supercritical CO2, pasteurised at 90°C, or left untreated. There were no significant differences in the sensory attributes and physical qualities between the CO2 treated juice and freshly extracted juice. The CO2 treated juice retained 88% of its vitamin C, while the pasteurised juice was notably different from the fresh juice and preserved only 57% of its vitamin C content. After 8 weeks of storage at 4°C, there was no microbial growth in the CO2 treated juice.

Yes. Stars use fusion to create nuclear energy, which is what makes them "alive". The older they are, the "bigger" the element in them is. Hydrogen turns into Helium, and when hydrogen is used up, the helium starts fusing into bigger elements. it stops at iron however. Once stars start fusing silicon to iron, it is doomed because it takes more energy than it gives off.

Answer:

8 electrons (e-)

Explanation:

In the atom of every elements, there are three sub-atomic particles namely: protons, electrons, and neutrons. The protons are the positively charged particles, the electrons are negatively charged while the neutrons are neutrally charged.

In an uncharged or neutral atom i.e. charge 0, the number of protons is always equal to the number of electrons because they cancel each other out. When a difference occurs in the number of these particles, the atom becomes charged i.e. an ion. According to this question, oxygen atom (O) contains 8 positively charged protons, this means that it also contains 8 negatively charged electrons in its atom.

Answer:

c. Underground tunnels

Explanation:

Yes, water below your feet is moving all the time, but, no, if you have heard there are rivers flowing below ground, that is not true. Water moves underground downward and sideways, in great quantities, due to gravity and pressure. Eventually it emerges back to the land surface, into rivers, and into the oceans to keep the water cycle going.

Note: This section of the Water Science School discusses the Earth's "natural" water cycle without human interference.

The steps in the water cycle that carries water out of the ocean into a freshwater lake are rivers and streams.

The water cycle is used to describe the movement of water in the ecosystem. It involves the various processes through which water can move in the universe.

The steps in the water cycle that carries water out of the ocean into a freshwater lake are rivers and streams.

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Answer:

On a roller coaster, energy changes from potential to kinetic energy and back again many times over the course of a ride. Kinetic energy is energy that an object has as a result of its motion. Potential energy is the energy an object has as a result of its position

Explanation:

Answer:

I'm pretty sure that liquid moves by vibration

Explanation:

I asked my cousin

Answer:

A)sex cells

Explanation:

it’s the production of gametes, or sperm and eggs

Answer:

Eurkaryote... sorry if i wrong

Explanation:

Answer:

2 Cu2O + C = 4 Cu + CO2

Explanation:

CU2O has 2 coefficient

C has 1 coefficient

Cu has 4 coefficient

CO2 has 1 coefficient

Balance Equation 2 Cu2O + C = 4 Cu + CO2

Answer:

2CU2O + C -----> 2Cu + CO2

Explanation:

2 is added in reactants to balance oxygen O on both sides and 2 before Cu is added in products to balance Cu on both sides.

Answer:

The answer is 1:1

Explanation:

CaCO3(s) + 2HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g)

Answer:

D) 100*C

Explanation:

Answer:

A. 0°C

Explanation:

El agua se evapora a los 0 grados