In how many years will identified coal reserves in the United States most likely be depleted at current usage rates?
A) about 50 years
B) about 100 years
C) about 250 years
D) about 500 years

Question

In how many years will identified coal reserves in the United States most likely be depleted at current usage rates? 
A) about 50 years 
B) about 100 years 
C) about 250 years 
D) about 500 years

Quizplus · Accepted Answer

Based on estimates, identified coal reserves in the United States are expected to last about 250 years at current usage rates. This projection takes into account the amount of coal that is currently known to be recoverable with existing technology and at current prices.

In How Many Years Will Identified Coal Reserves in the United