what surface mining procedure would most likely be used to mine coal on hilly terrain?

Answers

Answer 1

The surface mining procedure most likely used to mine coal on hilly terrain is contour strip mining. This method involves extracting coal along the contour or the natural slope of the land, minimizing the need for extensive excavation.

When mining coal on hilly terrain, the most suitable surface mining procedure is contouring strip mining. This method is specifically designed to extract coal from areas with varying slopes and uneven topography. In contour strip mining, the coal seam is extracted along the contour or the natural shape of the land, following the curvatures and undulations of the hilly terrain. This approach allows for minimal disturbance to the surrounding landscape, as the overlying layers of soil and rock are removed only where necessary to access the coal seam.

Contour strip mining involves the creation of a series of parallel cuts, known as contour cuts or benches, along the slope of the hill. These cuts are made at different elevations, following the coal seam, and each bench exposes a portion of the coal for extraction. The overburden, which refers to the layers of soil and rock above the coal seam, is typically placed downhill from the cut, forming a contour ridge. This technique helps to stabilize the slope and prevent erosion while minimizing the impact on the surrounding environment.

By utilizing contour strip mining, coal extraction on hilly terrain can be carried out in an efficient and environmentally conscious manner. It allows for the recovery of coal reserves while preserving the natural topography and minimizing disturbances to the ecosystem.

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Related Questions

Which triangles are congruent according to the SAS criterion?
M
А
Р
E
B
N
R.
OA. A ABC and ALMN
OB. ALMN and AFGE
OC. ALMN, AFGE, and A POR
OD. AFGE and A POR
OE. A ABC, AFGE, and A POR

Which triangles are congruent according to the SAS criterion?MEBNR.OA. A ABC and ALMNOB. ALMN and AFGEOC.

Answers

i think the answer is A?

The triangles  ΔABC, ΔFGE, and ΔPQR are congruent according to the SAS criterion. The correct option is E.

What is congruent?

In geometry, two figures or objects are said to be congruent if their shapes and sizes match, or if one is the mirror image of the other.

We have the criteria for congruence SAS.

That means, side-angle-side.

That means, two sides and one angle are similar.

In ΔLMN,

two angle and one side is similar.

That is not the criteria of SAS.

And In the triangles,

ΔABC, ΔFGE, and ΔPQR.

The property is side-angle-side are similar.

That means,

ΔABC, ΔFGE, and ΔPQR are congruent.

Therefore, ΔABC, ΔFGE, and ΔPQR are congruent.

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If the wind is easterly over an ocean region in the northern hemisphere, what direction does the total water column move according to ekman transport?.

Answers

If the wind is easterly over an ocean region in the northern hemisphere, From south to north the total water column move according to Ekman transport.

The Northern Hemisphere is the half of of Earth this is north of the Equator. For other planets within the solar device, north is described as being inside the equal celestial hemisphere relative to the invariable plane of the sun system as Earth's North Pole. The Northern Hemisphere is genuinely that half of the Earth which lies to the equator's north. In assessment, Southern Hemisphere lies to the south of the planet Earth's equator. Moreover, there are a few continents have components in both the hemispheres. Europe and North the united states lie absolutely within the northern hemisphere. All locations on this planet which might be north of the equator are in​ the Northern Hemisphere. This consists of all of North the us and Europe together with maximum of Asia, northern South america, and northerly Africa

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What creates the gusty winds commonly associated with thunderstorms?

Answers

Gusty winds commonly associated with thunderstorms are created by the downdrafts and updrafts within the storm. As rain falls from the cloud, it creates a downdraft of cool air that rushes towards the ground.

This cool air can spread out in all directions when it hits the ground, creating gusty winds near the base of the storm. At the same time, warm, moist air rises rapidly from the ground into the cloud, creating an updraft. This updraft can also create gusty winds as it pushes out of the top of the cloud and spreads out high in the atmosphere. These gusty winds can be especially strong near the edge of the storm, where the updrafts and downdrafts are most intense.

Gusty winds commonly associated with thunderstorms are created by downdrafts and microbursts. As a thunderstorm develops, strong updrafts carry moisture and warm air up into the atmosphere, eventually leading to the formation of a thundercloud. As the cloud grows and matures, it can produce heavy rain, lightning, hail, and strong winds. Within the cloud, downdrafts form as cooler air sinks downward. These downdrafts can become concentrated and rapidly descend to the ground, creating a microburst. The air spreads out as it hits the ground, creating gusty winds that can be extremely hazardous to aircraft during takeoff and landing.

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Which statements describe what geologists study? Check all that apply.

Answers

Answer:

where are the multiple choice?

Explanation:

To relocate means to __________.

Answers

Answer:

to move to a new location.

Explanation:

The word relocate came into English in the 1800s from re, meaning "back, again," and locate, meaning "to settle." Relocate refers not only to moving to a new place but also to establishing yourself there.

which effect can a ocean have on a climate?

Answers

Answer:

The oceans make the climate milder in general, but they can make a place very wet or very dry.

Explanation:

The oceans are one of the major climate modifiers. They contain a huge amount of water in them, and with the water having different properties than the land it manages to alter the climate along the coastlines or in the islands. The water, unlike the land, is heating up and cooling off much slower, thus its temperature is much more stable, making the areas under its influence much milder.

On the other hand, there is a big difference in climatic influence between warm ocean water and cold ocean waters. The first ones create warm and wet air masses above them so when they make the areas they influence pretty wet. The cold ocean waters create cold and dry air masses, and these air masses don't bring in precipitation on the land, so they create arid and semi-arid climate conditions.

Answer:

Ocean winds can carry moisture with them and can bring rain and fog over inland areas.

Explanation:

took the test

Why might the concept of separate global regions become a thing of the past?

Answers

Because the planets are aligning. Some are getting damaged, and that is a whole concept from the past.

What is the outcome of hotspots?

A. Formation of islands

B. Constant volcanic eruptions

C. Divergent boundary creation

D. Transform boundary creation

Answers

Answer:

A) Formation of islands

Explanation:

The outcome of hotspots is the Constant volcanic eruptions. Thus, the option (b) is correct.

Waht is hotspots?

A hotspot is a huge plume of heated mantle layer that rises from the planet's interior. Tectonic plate borders have no bearing on where a hotspot is located on the surface of the planet. Similar to how a line of melted wax appears when a sheet of parchment paper is slowly dragged over a burning candle, a line of volcanoes develops as a plate moves over a hotspot.

These same "hotspot" volcanoes are formed when a slender stream of hot crust rises up from the core of the earth and melts a fissure in the plate to allow magma to seep upward. Continuous volcanic outbursts are the result of hotspots. When one of the Earth's plates passes over an abnormally hot region of the mantle, hotspots develop.

Therefore, option (b) is correct.

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4.7.151.5
Which of the following is the most complex
level of cell organization?
A cell
B organ
C organism D tissue

Answers

Answer:

C organism

Explanation:

The most complex and highest level of organization is the organism. As we move up the scale, complexity increases.

Organization of life projects how organisms are arranged into levels of life.

The basic unit and most fundament level is the cell. After the cell is the tissue made up of a group of cell that performs a specific function. A group of cells performing specific role is tissues. Tissues performing specific roles are organs. Group of organs performing specific roles is system. Beyond the system level is the organism.

In analyzing a business, the characteristics of an ___________, such as the order date, product, and quantity, are best referred to as data.

Answers

In analyzing a business, the characteristics of an order date, product, and quantity are best referred to as data.

Data refers to raw facts, observations, or measurements that are collected and recorded. In the context of analyzing a business, data plays a crucial role in providing information and insights for decision-making and understanding various aspects of the business operations.

The characteristics mentioned, such as the order date, product, and quantity, are specific pieces of information that describe certain aspects of the business transactions. These characteristics are typically collected and stored in a structured format, such as in a database or spreadsheet, to facilitate analysis and interpretation.

By analyzing this data, businesses can gain valuable insights into customer behavior, inventory management, sales performance, and other important metrics. Data analysis techniques, such as statistical analysis, data mining, and visualization, can be applied to uncover patterns, trends, and relationships within the data, enabling businesses to make informed decisions and identify opportunities for improvement.

Therefore, in the context of analyzing a business, the specific characteristics mentioned are considered as data, which forms the foundation for analysis and decision-making processes.

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how can the technology used by gates be considered beneficial to the environment?

Answers

it can help animals i hope this helps

A city is rioting, and large groups of criminals are roaming the streets and breaking into homes and businesses. The mayor and other leaders have fled. So many people are participating in the violence that the remaining police officers are unable to enforce the law.
Which of the following terms best describes the government of the city that is described in the passage above?
A.
an anarchy
B.
an authoritarian government
C.
a fraudulent government
D.
a democracy

Answers

Answer: It actually A

Explanation:

Answer:

its a

Explanation:

Explain a possible limitation of comparing Image 1 and Image 2 to understand the population growth and composition of New York City and Tokyo.

Answers

A possible limitation of comparing Image 1 and Image 2  is that:

It restricts the quantity of information beyond the fact that most New Yorkers are of White ethnicity, while most residents of Japan are Asian.

What does the term "ethnic identity" mean?

The landscapes of New York City and Tokyo are impacted by assimilation, which occurs when individuals of one cultural group adopt the behaviors of another group while retaining some of their own characteristics.

Since there are no accepted scientific definitions of race or ethnicity, these factors are challenging to measure. Many wonder if significant comparison research can be conducted without a common scientific definition when there is so much room for classification error.

Therefore, an element  of ethnic identity is the sense of ethnic group membership. Different metrics can be used to assess ethnic identification. Simply asking a responder about their affiliation with the dominant group and their ethnic group is one way to collect data.

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Explain a possible limitation of comparing Image 1 and Image 2 to understand the population growth and
Explain a possible limitation of comparing Image 1 and Image 2 to understand the population growth and

If the salinity of a sample of seawater is 33 parts per thousand, what will be the ratio of chloride to sodium to sulfate? about 19 to 11 to 3 about 2 to 1 to 1 about 1 to 1 to 1 it's not possible to answer from the information given

Answers

The concentration of chloride in seawater is approximately 19 ppt, sodium is 11 ppt and sulfate is 3 ppt. Therefore, the ratio of chloride to sodium to sulfate in seawater is about 19 to 11 to 3.

1. Salinity refers to the amount of dissolved salts in seawater. In this case, the salinity is given as 33 parts per thousand (ppt). This means that for every 1000 parts of seawater, 33 parts are dissolved salts.

2. The most common ions in seawater are chloride (Cl-), sodium (Na+), and sulfate (SO42-). These ions contribute to the salinity of seawater.

3. To find the ratio of chloride to sodium to sulfate, we need to compare the concentrations of these ions in seawater.

4. The concentration of chloride in seawater is approximately 19 ppt. This means that for every 1000 parts of seawater, 19 parts are chloride ions.

5. The concentration of sodium in seawater is approximately 11 ppt. This means that for every 1000 parts of seawater, 11 parts are sodium ions.

6. The concentration of sulfate in seawater is approximately 3 ppt. This means that for every 1000 parts of seawater, 3 parts are sulfate ions.

Therefore, the ratio of chloride to sodium to sulfate in seawater is about 19 to 11 to 3.

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10. How does orographic precipitation form in coastal areas?
Hot, humid air rises from the earth's surface and cools.
Warm air is forced upward by cool, heavier air.
Moist winds are forced upward by high landforms.
Dry, hot alr warms the area behind inland mountains.

Answers

Answer:

B.

Moist winds are forced upward by high landforms.

Explanation:

Compare and contrast the economies of the United Kingdom, Germany, and Russia using five or more complete sentences.​

Answers

Answer:

The United Kingdom, Germany, and Russia all have mixed economies. The United Kingdom and Germany share the most in common. They both have highly developed economies with few government restrictions and are focused on the service industry. The main difference between the two economies is that Germany is also focused on manufacturing, which makes it one of the most powerful economies in the world. Russia’s economy is somewhat different than the other two. Though it is a mixed economy, one of its greatest challenges is changing from a command economy to a market economy. The government has more control of Russia’s economy than the other two countries’ governments do of theirs. It is still a developing economy that is shifting form agriculture to manufacturing, energy, and service. Though Russia’s economy is growing quickly, it faces issues of corruption in the private sector and in government. This works for Edge nuity.

Explanation:

Answer:

The main difference between the two economies is that Germany is focused on manufacturing.  Russia’s economy is different than the other two. The government has more control of Russia’s economy than the other two countries’ governments do of theirs. Though Russia’s economy is growing quickly, it faces issues of corruption in the private sector and in government.

Explanation:

IF YOU DONT WANNA LOOK SUS USE THIS. sus means suspicious.

Can someone help me with this question? :)

Can someone help me with this question? :)

Answers

the an is the third option!

Which of the following is NOT a contributing factor to Africa's rapid rate of urbanization?

Better lifestyle
Education
Jobs
Negative population growth
Rapid population growth

Answers

Negative population growth

Negative population growth is the factor that is NOT a contributing factor to Africa's rapid rate of urbanization. Hence, option D is correct.

What factors that affected the urbanization in Africa ?

Urbanization refers to the process by which people move from rural areas to cities or urban areas. In Africa, there has been a rapid rate of urbanization in recent years, and there are several contributing factors to this trend. These factors include:

Better lifestyle: Many people are attracted to the perceived higher standard of living and greater economic opportunities in urban areas.

Education: Urban areas often have better access to education and other services than rural areas, which can also be a draw for migrants.

Jobs: Urban areas typically offer more job opportunities, which can be a major factor in attracting people to cities.

Rapid population growth: The high population growth rates in many African countries can contribute to the rapid rate of urbanization, as more people move to cities in search of opportunities.

Negative population growth, on the other hand, would have the opposite effect and could slow down the rate of urbanization, as there would be fewer people looking to move to cities.

Hence, option D is correct.

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What economic activity is performed in the Northern Region of Europe?

Answers

Answer:

Coal,oil and natural gas

Explanation:

The exploitation of oil and natural gas in Northern Europe is a comparative new activity. The highest yields are obtained in the North Sea, with Great Britain and Norway holding the largest shares.

Mid-latitude cyclones are low-pressure systems. From which world pressure belt do they originate?​

Answers

Explanation:

Mid-Latitude Cyclones

A cyclone is a system of winds rotating counterclockwise in the Northern Hemisphere around a low pressure center. The swirling air rises and cools, creating clouds and precipitation. Mid-latitude cyclones form at the polar front when the temperature difference between two air masses is large

Any piece of help is appreciated!

Any piece of help is appreciated!

Answers

When looking at a map that accurately depicts the major rivers, mountainous regions, desert provinces, and population concentrations of a particular area, two prominent topographical patterns you might observe are plateaus and valleys.

What is a Plateau?

A plateau is typically characterized as an extensive landscape that is relatively level and elevated above its bordering areas. It generally finds itself alongside mountain ranges and can be marked on maps with its shallow, elevated surface area.

Valleys, however, are narrow and low-lying parts of the land between two higher points — such as mountain ranges — formed usually by running water. They can be spotted on maps by their lengthy, curved shape.

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Sue narrowed her eyes as she watched Bill walk into his office. This was the fourth time that Bill had been late for work. He used to be so punctual, but that had changed. He also left quite early during the weekday, without even making up the time he missed in the mornings. He had been so unlike himself lately, it made Sue feel uneasy about approaching him.

Based on the passage above, what does punctual mean?
A.
frequently late
B.
regularly on time
C.
hardworking
D.
slow-moving
I need This ASAP!!!!! Pls IT's due

Answers

Answer:

I may be wrong, but the most reasonable answer here seems to be B: regularly on time.

Explanation:

The whole time they talk about how he is always on time, and how all the sudden he is late. They never mention how hard working he used to be.

Sorry if it's wrong!

Answer:

Answer B

Explanation:

The popular vote actually provides for __________ and not the presidential candidates themselves.

Answers

Answer:

When citizens cast their ballots for president in the popular vote, they elect a slate of electors. Electors then cast the votes that decide who becomes president of the United States. Usually, electoral votes align with the popular vote in an election so technecally the popular vote means you just popular with the people the electoral college amkes the president the president

Explanation:

Please help due tonight

Please help due tonight

Answers

Answer:d

Explanation:

Describe how children are affected by children labour? Please respond me ASAP

Answers

Answer:

The difference between ‘child labour’ and ‘child work’ is that child labour refers to work that is

harmful to children. It is work that is mentally or physically dangerous, work that interferes

with their ability to go to school which can affect their income-earning potential as adults. The

health and wellbeing of child labourers is at risk, and they can end up being trapped in a cycle

of poverty.

There are a number of ways that child labour can affect children, and these can vary

depending on which industry the child is working in. Generally, child labourers can suffer from

long-term health problems due to malnutrition, exposure to chemicals, abuse, injuries,

exhaustion, and psychological harm.

1

 In agriculture, children may be exposed to toxic pesticides or fertilisers. They work with

dangerous blades and tools, and carry heavy loads.

 In mining, children may use poisonous chemicals, face the risk of mine collapse, and

sometimes work with explosives.

 In construction, children may carry heavy loads, work at heights without safety

equipment, and risk injury from dangerous machinery.

 In manufacturing, children may use toxic solvents, perform repetitive tasks in painful

positions, and risk injury from sharp tools.

 In domestic work, children risk abuse, work long hours, and often live in isolation from

their families and friends.

What ate all the rivers in North America and canda

Answers

Answer:

that sounds... dark.. unmmm


The water cycle is the sequence of conditions that water passes through in
the atmosphere and on Earth's surface. Water condenses when:

Answers

Water condenses when it undergoes a phase change from its gaseous state (water vapor) to its liquid state (water).

This occurs when water vapor cools down and reaches its saturation point, which is the temperature at which the air is holding the maximum amount of water vapor it can contain.

The cooling process can be triggered by various factors such as a decrease in temperature, contact with a colder surface, or the uplift of moist air, leading to the formation of clouds. As the air cools, the water vapor molecules slow down and come closer together, forming tiny water droplets or ice crystals. These droplets or crystals cluster around particles called condensation nuclei, such as dust, pollutants, or aerosols, which provide a surface for the water to condense onto.

Condensation is a crucial step in the water cycle as it leads to the formation of clouds, fog, and dew. When the water droplets or ice crystals become large enough, they can fall back to Earth as precipitation, such as rain, snow, or sleet. This completes the cycle, as the water returns to the Earth's surface and can eventually evaporate again, starting the process anew.

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Why does the age of oceanic crust increase as the distance from the ocean ridge increases?

Answers

Answer:

Because oceanic crust is continually being created at the ocean ridge and then gradually moves away from the ridge over time.

Explanation:

The age of oceanic crust increases as the distance from the ocean ridge increases because oceanic crust is continually being created at the ocean ridge and then gradually moves away from the ridge over time. The ocean ridge is a long, underwater mountain range that runs along the bottom of the ocean, and it is the site of intense volcanic activity. This volcanic activity creates new oceanic crust, which is made up of layers of molten rock that cool and solidify as they move away from the ocean ridge. Over time, the oceanic crust moves further and further away from the ocean ridge, and as it moves, it cools and becomes older. This is why the age of oceanic crust increases as the distance from the ocean ridge increases - the further the crust is from the ridge, the older it is.

five examples of internal and external layers of the structure of the earth {5marks}

Answers

Answer:

5 examples of internal structure of the earth are:

1) Crust.

2) Upper Mantle.

3) Lower Mantle.

4) Outer Core.

5) Inner Core.

5 examples of external structures of the earth are:

1) Exosphere.

2) Thermosphere.

3) Mesosphere.

4) Stratosphere.

5) Troposphere.



The powers not delegated to the United States by the
Constitution, nor prohibited by it to the States, are reserved
to the States respectively, or to the people.
Which Anti-Federalist concern does this amendment included in the Bill of
Rights most clearly address?

Answers

Answer:

The correct answer is - The Importance of strong state governments to balance the strong federal.

Explanation:

According to the 10th amendment of the constitution that authorities are not given to America neither prohibited by it to the authorities of States, are kept to the States sequentially, or to the bodies.

It helps in the stated the stability of powers between the states and federal administration. The federal government has only powers that are explicitly imparted by the Constitution.

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sean overestimates the proportion of family chores for which he takes sole responsibility because it's easier for him to recall all the chores he has done than to recall what chores other family members have done. this best illustrates the impact of: a. the availability heuristic. b. functional fixedness. c. confirmation bias. d. anchoring effect. Celebrity A has 400 followers on social media and is gaining 75 followers each day. Celebrity B has 1,000 followers on social media but is losing 25 followers a day. How many days will it take them to have the same number of followers? * acordin to self interest and competition act as guiading firms in a market-based economy what is a unit of measurement that indicates the distance between lines of latitude and longitude called? Why was Thomas Paine's pamphlet, Common Sense, so important? PLEASE HURRYThey helped convince Americans that the French could not help during the warThey helped to shape the belief for many Americans that Americans should declare IndependenceThey showed that the British were superior and could defeat usThey helped to lift the siege of Boston by convincing Americans they could defeat the British at Boston aden has found a table of the atmospheric layers of the Sun. However, he cant make out the names of the layers in the chart.A 4 column by 3 row table. Column one is untitled with the following entries: Position, Thickness, Temperature. Column 2 is titled A with the following entries: Lowest, 100 kilometers, 5,500. Column 3 is titled B with the following entries: Middle, 2000 kilometers, 6,000 to 20,000. Column 4 is titled C with the following entries: Outermost, Millions of kilometers, 2,000,000.What are the names of the Suns layers described in columns A, B, and C?A: Corona; B: Photosphere; C: ChromosphereA: Core; B: Chromosphere; C: PhotosphereA: Chromosphere; B: Corona; C: CoreA: Photosphere; B: Chromosphere; C: Corona Why do people buy stock/invest in Exxon Mobil Corp. and TeslaInc.?300+ words each please a local television news station includes a viewer survey question about a current issue at the beginning of every evening news broadcast. viewers are invited to use social media to respond to the question. the results of the survey are shared with the audience at the end of each broadcast. How can we map the structure of a fairy tale? An economy that does not trade with the rest of the world is a(n): Group of answer choices open economy. command economy. trade economy. closed economy. one-person economy. A biker rides his sports bike at a speed of 50 km/h for 10 km and then increases his speed to 120 km/h for 30 km. What was his average speed during his road trip? Give your answer correct to 2 decimal places. 2 What type of pollution causes health problems primarily throughdecreased mental health and stress?A Water pollutionB. Noise pollutionC. Acid rainD. Species extinction What do you call it investing when you receive income that results from selling an asset stock for more than the purchase price? A random sample of students were surveyed as to how much non-school screen time they had each week (for purposes of the survey,screen time was defined as: time spent online, on social media,watching TV, or playing video games) and if their grade average wasabove or below 80. Read the following quote:"Your invention of the alphabet is worth more to your people than two bags full of gold in the hands of every Cherokee." -Sam Houston (from History of Sequoyah, Cherokee.org)Based on this quote, what can you conclude?Sam Houston was a famous Cherokee Chief.Sam Houston was responsible for inventing the Cherokee alphabet.Sequoyah was responsible for inventing the Cherokee alphabet.Sequoyah was a famous Cherokee Chief. LeGarrette spends $18 on a box of potato chips that contains 12 bags. What is the cost, in dollars of each bag of potato chips? Which is FALSE?A) In eukaryotes, DNA polymerase I activity removes the flap(=primer-overhang) created by synthesis of the next Okazaki fragment.B)In eukaryotes there is no DNA polymerase that has 5 to 3 nick translation activityC)The FEN1 exo/endonuclease (MF1) cuts the flap=primer-overhang created by synthesis of the next Okazaki fragmentD)Prokaryotic ligase and eukaryotic ligase 1 seal gaps between Okazaki fragments in DNA replication TRUE / FALSE. the need to interact with other people is a social need that different housing options can fulfill. I have a Spanish project. I need a sentence, that is not a question. It has to have usted with a verb. so (you formal) then (doing something) The angle formed by the radius of a circle and a tangent line to the circle is always:less than 90 degrees greater than 90 degrees equal to 90 degrees