What chemical weathering process associated with surface mining activities is a major environmental hazard?
A)coal oxidation
B)oxidation of pyrite and other sulphides to produce "mine acid" or acid rock drainage
C)recurrent landslides from unstable talings piles
D)release of oxidized mine gases

Question

Quizplus · Accepted Answer

Oxidation of pyrite and other sulphides in mine waste materials can produce "mine acid" or acid rock drainage, which can contaminate water resources and harm aquatic life. This is a major environmental hazard associated with surface mining activities.

What Chemical Weathering Process Associated with Surface Mining Activities Is