FORESTRY
FOREST POLICY AND GOVERNANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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can cause miners to trip
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can be full of sharp objects
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can cause acid leaching into water bodies
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are full of conflict minerals
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Detailed explanation-1: -When large quantities of rock containing sulphide minerals are excavated from an open pit or opened up in an underground mine, it reacts with water and oxygen to create sulphuric acid.
Detailed explanation-2: -Acid mine drainage is the formation and movement of highly acidic water rich in heavy metals. This acidic water forms through the chemical reaction of surface water (rainwater, snowmelt, pond water) and shallow subsurface water with rocks that contain sulfur-bearing minerals, resulting in sulfuric acid.
Detailed explanation-3: -Mine drainage is formed when pyrite (an iron sulfide) is exposed and reacts with air and water to form sulfuric acid and dissolved iron. Some or all of this iron can precipitate to form the red, orange, or yellow sediments in the bottom of streams containing mine drainage.
Detailed explanation-4: -If not managed properly, tailings can have chronic adverse impacts on the environment and human health and safety, with pollution from effluent and dust emissions being potentially toxic to humans, animals or plants.