OBJECTIVE FORESTRY

Detailed explanation-1: -Acid mine drainage (AMD) is a major water quality problem as it reduces the pH of water resource, making dissolved metals readily available for uptake by benthic organisms and fish, which becomes a major pathway of their introduction into the human food chain.

Detailed explanation-2: -Acid mine drainage mostly occurs where mining is done to extract coal or metals from sulfur-bearing rocks. Silver, gold, copper, zinc, and lead are commonly found in association with metal sulfates, so their extraction can cause acid mine drainage.

Detailed explanation-3: -Primary sources : Mine rock dumps Tailings impoundment Underground and open pit mine workings Pumped/ natural discharged underground water Diffused seeps from replaced over burden in rehabilitated areas Construction rock used in roads, dams etc.

Detailed explanation-4: -Yes, acid mine drainage is considered point source pollution. Often only a single mine in an area is contributing to the acidification of nearby waterways and land, which, since there is a single source of pollution makes this type of pollution point source pollution.