This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Describe the coal reserves of the United States. What will be an ideal ... (Read 35 times)

washai

  • Hero Member
  • *****
  • Posts: 523
on: Jul 21, 2018
Describe the coal reserves of the United States.
 
  What will be an ideal response?

Question 2

Outline some of the major differences in the ways coal is mined.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jazzlynnnnn

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 21, 2018
Answer to Question 1

The EIA estimates that there is 486 billion tons of coal in known deposits in the United States. That should be
enough to last hundreds of years at current rates of consumption. The United States has the largest known coal
reserves in the world.



Answer to Question 2

Coal near the surface is mined in what is often referred to as open pit or strip mines. In open pit mining, the
overburden (surface covering of earth) is removed and stored aside; the coal is removed; and the site is restored
using the overburden. Coal in deeper deposits is taken from underground mines. There are three main types of underground mines: shaft mines, slope mines, and drift mines. Shaft mines use vertical tunnels to gain access to
deeper coal deposits. Slope mines use tunnels that slope down more gently from the surface to the coal deposits.
Drift mines involve tunnels cut into the sides of mountains.



washai

  • Member
  • Posts: 523
Reply 2 on: Jul 21, 2018
YES! Correct, THANKS for helping me on my review

cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

The cultural script in the United States is for males to be the initiators and females the ... The cultural script in the United States is for males to be the initiators and females the ...
The demand for cheap coal to generate electrical power is rising The demand for cheap coal to generate electrical power is rising
GDP per Capita in the United States, 1870–2009 GDP per Capita in the United States, 1870–2009
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
Describe the Conceptual Forecasting Framework in your own words. Describe the Conceptual Forecasting Framework in your own words.
Remote satellite monitoring of gross primary productivity across the United States. The differences Remote satellite monitoring of gross primary productivity across the United States. The differences
Video: X chromosome inactivation in calico cats

For a complete list of videos, visit our video library