Acid mine drainage: a. is a problem in many of the coal-mining ...

[KWilfred]

Acid mine drainage:
 a. is a problem in many of the coal-mining regions of the eastern U.S.
  b. often raises the pH of local streams.
  c. is primarily related to mining salt from the waters of the Great Lakes.
  d. is a procedure developed to reduce chemical pollutants in streams.
  e. is a procedure developed to raise stream temperature.

Question 2

Large withdrawals of subsurface water can cause compaction that results in a sinking of the land, which known as:
 a. subduction.
  b. subsidence.
  c. tectonism.
  d. percolation.
  e. a flowing artesian well.

[wilsonbho]

Answer to Question 1

A

Answer to Question 2

B

[KWilfred]

Excellent

[cpetit11]

Thanks for the timely response, appreciate it