Question

which type of mining is likely the least harmful to the environment?
a. surface mining
b. placer mining
c. subsurface mining
d. none of the above

please select the best answer from the choices provided

a
b
c
d

Explanation:

Subsurface mining disturbs less surface area compared to surface mining (which removes large amounts of top - soil and vegetation) and placer mining (which often involves using water in a way that can disrupt riverbeds and aquatic ecosystems).

Answer:

C. subsurface mining