Depletion time is the time it takes to use up approximately _____% of the mineral reserves at a given rate of use.
a. 30
b. 50
c. 60
d. 70
e. 80
Answer: E
Depletion time is the time it takes to use up approximately _____% of the mineral reserves at a given rate of use.
a. 30
b. 50
c. 60
d. 70
e. 80
Answer: E
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.