how is shaft method carried out​

Answers

Answer 1
The method consists in drilling the holes and then injecting a slurry of water and cement under pressure through the holes till they are completely sealed off. In the past injection was done at low pressures like 6 kgf/cm2 but it has been proved that high pressure of the order of 300 kgf/cm2 can be used successfully

Related Questions

State two reasons for the growing importance in the status of petrochemical industries.​

Answers

Answer:

Two reasons for the growing importance is the status of petrochemical, industries are: 1. It is durable, cheap, light weight and attractive.

Explanation:

Reasons for the growing importance of petrochemical industries are:

They are durable. They are cheap and lightweight. They are attractive.

Why are petrochemical industries rising in status?

Petrochemical industries having been rising in status because the goods they produce are durable and cheap.

They are also quite attractive and lightweight which makes them useful and aesthetically pleasing.

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I need help asap. The topic is geology

Answers

Answer:

is item A

Explanation:

If I help you give me a crown and dots, thanks

Which two elements is the mantle primarily made of?.

Answers

Answer:

Explanation:

In terms of its constituent elements, the mantle is made up of 44.8% oxygen, 21.5% silicon, and 22.8% magnesium.

How many countries are there in Asia?
Thanks :)

Answers

Answer1+1 equal everything

Peppered moths come in two color variations, as shown below.

Prior to the Industrial Revolution, the majority of the population in England consisted of the light colored variation. The dark colored moth became the dominant variation by the end of the 20th century and remained so for almost 100 years. Today, the light colored variation is dominant again.

What is the best explanation for this?

A.
A single variation can be beneficial under some conditions and harmful under other conditions.

B.
Populations with two variations have a better chance of survival than populations with more.

C.
One variation will always be harmful, and the other will always be beneficial.

D.
A single variation can be beneficial in all conditions or harmful in all conditions.

Answers

A. A single variation can be beneficial under some conditions and harmful under other conditions

The upper part of the mantle and the crust combine to make what rigid layer of rock that are broken into plates?.

Answers

Answer:

The lithosphere

Explanation:

The lithosphere is the rocky outer part of the Earth . It is made up of the brittle crust and the top part of the upper mantle . The lithosphere is the coolest and most rigid part of the Earth .

In this unit, you learned how humans evolved from their earliest days to the beginning of civilizations in settled communities. What do you think are the traits that make humans human? Explain why you think these traits are important.

Answers

Answer:

 Sub-Saharan Africa is a lot like the half empty, half full glass. Although the region has many problems, it holds much hope for the future. On one hand, political and economic problems plague the region.

   The region's cities attract a high number of immigrants, increasing diversity as well as the ethnic conflict in the region. Population growth is putting a tremendous strain on the environment. Because of population growth, there are water shortages, unemployment, lack of housing, and inadequate services. On the other hand, there are still large areas of land that can be farmed to feed the population and provide crops for export.

   Governments are stabilizing, but government systems lack capacity, and representative government is increasing. Some government systems in the region are unstable. Many governments are unable to provide adequate services. Ethnic diversity and conflict continue to plague the region. On the other hand, most government systems are moving toward democratic, multiparty systems in which leaders are elected.

   Economic development is increasing, yet, there are many factors that describe the political situation that Sub-Saharan Africa is facing such as international debt, and weak government systems that hinder economic development. There are positives though. Foreign investment will aid the region's economic development, and globalization will play a role in the region's economic future. Technological advances will also expand employment opportunities. There are several methods dealing with water issues that affect the economics of the region. Water is moved from an area where it is abundant to an area experiencing a shortage, and desalinization is being implemented.

Social services are also improving. Nevertheless, there are a number of regional issues that must be addressed. Health issues in the region include malaria, schistosomiasis, and AIDS. Progress is being made, particularly in urban areas where clinics offer basic care. The status of women also varies throughout the region.

Explanation:

what are the 3 ways government can do in order to reduce or better still do away with environmental issu

es

Answers

Answer:

1. They can help restore the natural part of the ecosystem. Protecting the forests, rivers, oceans, wetlands, etc.

2. Help small producers in the agricultural industry.

3. They can advertise and advocate for more people to use green energy (solar energy, wind energy, hydro energy, etc.)

Besides infinite, what other attributes of God do you think we can understand better because of math? Why?

Answers

Answer:As we understand biblically where math came from and why it works so consistently, we find that God is not only in math, but He created and sustains math.

Explanation:

Answer:

God created us and he did that so that we could figure out his creation

Explanation:

Generally, the greatest lake effect snow fall will be on the ____ shore of the Great Lakes. Select one: a. northern b. southern c. eastern d. western

Answers

Answer:

eastern

Explanation:

Which is a major drawback to the use of hydrogen power?
O
A. The use of fossil fuels is required to create pure hydrogen.
B. Hydrogen power creates toxic waste that must be stored forever
C. Hydrogen may run out in the next 100 years.
O D. Burning hydrogen releases greenhouse gases.

Answers

Answer:

1. The expenses 2. It's also really flammable 3. It also emits a greenhouse gas.

Answer:

the answer is A

Explanation:

The four technique Homer use to show direction on sea

Answers

Dude I can't help. There is no information about this.

Answer:

None

Explanation:

Homer was a poet. He was not an experienced sailor.

What country would you be in if you were to travel due west from the state of maine

Answers

Canada, you would be traveling to Canada if you were to travel due west from the state of Maine.

“How does rainwater get into an underground cave?”

Answers

Answer:

I'm pretty sure it gets through these joint type things that connects the cave to the surface

Explanation:

Hope this helps:)....if not then sorry for wasting your time and may God bless you:)

Answer:

It will go down through the dirt into a underground cave/stream that can lead up to a underground cave.

Explanation:

Gravity will pull the water down, and dirt is not completely solid. So, the water will find its way down through the dirt, and into a underground stream that will eventually find its way into a underground cave, or just go into a underground cave. Hope this helps!

What intrusive volcanic activity may occur at a fold

Answers

Answer:

when magma is forced into the rocks that make up the Earth's crust.

Explanation:

Intrusive volcanism is when magma is forced into the rocks that make up the Earth's crust. When it cools and becomes solid while still underground, different features called plutons are formed. The rock formed is intrusive igneous rock.

From a hot-air balloon, Jace measures a 31 ∘ angle of depression to a landmark that’s 331 feet away, measuring horizontally. What’s the balloon’s vertical distance above the ground?

Answers

Answer: 198.86 ft

Explanation:

In ΔABC, we have:

[tex]\begin{aligned}\Rightarrow \quad \tan 31 &=\frac{\text { height }}{\text { base }}=\frac{h}{331} \\\Rightarrow \quad h &=331 \times \tan 31 \\&=0.6008 \times 331 \\h &=198.86 \mathrm{ft}\end{aligned}[/tex]

The purpose of a map’s scale is to help __________.
(A.)<=a
measure distances
B.
find cardinal directions
C.
understand symbols
D.
identify the purpose of a map

Answers

Answer:

A. measure distances

Explanation:

The purpose of a map’s scale is to help measure distances. It can show large distances on the map as much smaller by conversion of the map's scale.

Answer:

A. measure distances

Explanation:

Which route best connects iron ore to the large bituminous and anthracite coal mines located west of pittsburgh?.

Answers

The route that best connects iron ore to the large bituminous and anthracite coal mines is the Great lakes to Cleveland .

What is iron ore?

Iron ore ssrves as one of the mineral resources which can be heated in the presence of a reductant to produce a metallic iron.

It is usually inform of iron oxides and primary forms of which are magnetite , which can be found at Great lakes of Cleveland .

Learn more about Iron ore at;

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The term ______ means that the groundwater is in a confined aquifer and under enough water pressure that the water will rise some amount within a well.

Answers

(artesian) is the answer:)

Does anyone know what latitude zone similar to? Easy points

Answers

The equator I believe

Why arent countries where gold mines located richest

Answers

Answer:

Corruption

Explanation:

An abundance of natural resources don't always equate to wealth. Japan for example has few natural resources but is high in human capital.

Countries with gold mines might not be the richest possibly because of corruption, exploitation, and conflict.

This video might be of some help to you: "Why Some Countries Are Poor and Others Rich"

Corruption, exploitation, and conflict, are the reason of countries with gold mining may not be the richest. Natural resources in abundance may not automatically imply affluence.

What is gold mining?

The extraction of gold resources via mining is known as gold mining. Historically, manual separation procedures such as gold panning were employed to extract gold from deposits.

complex extraction procedures such as pit mining and gold cyanidation  have emerged. Large firms carried out the majority of mining in the twentieth and twenty-first centuries.

Thus, Corruption, exploitation, and conflict are the reasons.

For further details about the Gold mining, click here:

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What unexplained oddities have been found in the fossil record?

Answers

A typical unexplained oddities which been found in the fossil record is the evolution of species e.g. crocodile & bird, ape & human which are from same family.

What is a fossil record?

This refers to the history of life which was documented by fossils.

The fossil record entails observation from fossils which are remains organisms from earlier geological periods that was preserved in sedimentary rock.

Read more about fossil record

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how was power distributed in ancient india?

Answers

The empire was divided into many provinces and each one of these provinces was governed by a governor and council of ministers. In the provinces there were local officials called rajukas, who became more powerful during the reign of Ashoka.

Power was distributed through a class system called the caste, and can be compared to the feudal system seen in Western Europe before the renaissance era.

What are the three major layers of the atmosphere?

Answers

These layers are the troposphere, stratosphere, mesosphere and thermosphere.

If old mountains wear down over the course of millions of years, what is one of the primary reasons that mountains still exist?
A.
New mountains are created as a result of severe weather events, such as tornadoes and hurricanes.
B.
New mountains are created from the erosion of rock and soil.
C.
New mountains are created as leaf litter builds up over millions of years.
D.
New mountains are created through volcanic activity and lithospheric plate movement.

Answers

Answer: never

explaining is right about this

Why the world population did not grow in the earlier centuries? explain

Answers

Answer: Disease (economic disruptions) Also keep in mind that bacterica, cancer, tumors etc. were not brought up till the 1980's - 2000's

Explanation: Look at my comment because it got cencored for some reason

The highest peak in North America, Mt. McKinley (or Denali), is located in the state of __________. A. Nevada B. Washington C. Colorado D. Alaska Please select the best answer from the choices provided. A B C D

Answers

Answer:

D. Alaska

Explanation:

Mount McKinley is the tallest mountain in north America.

-Justin:)

Read the passage.


"It is in fact their great distance which is ""the reason of their diminution,"" for many of them are very many times larger than the star which is the earth. "


–"In Praise of the Sun,"

Leonardo da Vinci


Which is the best paraphrase of the underlined text in the passage?


why the stars are bright

why the stars are smaller

why the stars are so far away

why the stars are larger than the sun

Answers

Answer:

why the stars are far away

Answer:

The answer is B

Explanation:

Edge

Which of the following statements about using geothermal energy is not true? a. geothermal energy can be used to fuel vehicles. b. geothermal energy can be used as a source of electricity. c. geothermal energy can be used as a source of heat. d. geothermal energy is a renewable resource. please select the best answer from the choices provided a b c d

Answers

Which of the following is the CORRECT statement about Geothermal energy? Geothermal energy is the heat energy present on the surface of the Earth. Geothermal energy is the heat energy present in the interior of the Earth. Geothermal energy is the heat energy present on the surface of the ocean.

Geothermal energy cannot be used to fuel vehicles. The statement is not true as geothermal is renewable energy and cannot use as a fuel for vehicles.

What is geothermal energy?

The heat derived from the earth's subsoil is known as Geothermal energy. The steam is produced by hot water reservoirs a few miles or more beneath the earth's surface.

Thus, option B is not correct.

For further detail on the geothermal energy refer to this link:

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Which of the following are included in the five themes of geography?
Check all that apply.
A. Physical goggraphy
O B. Location
C. Human-environmental interaction
D. Cartography

Answers

C&OB

Because human environment interaction theme examine all how we have done and continue to do this. Location is the only one piece of the framework of geography,yet it is important theme because I help us know and express where things are.

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