Answer:
I think the answer is A I'm not sure if it's not a then it might be D
How close the planet is to the sun and how much it is receiving the sun's radiation.
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Acid mine drainage which is also known as acid and ''metalliferous drainage'' or the acid rock drainage is the outflow of water from the metals of mine or coal mines. Some measures that can be taken to prevent acid mine drainage are Soil removal which involves movement of contaminated material to an area where it can be treated.
Direct treatment of the contaminated water through a water plant is another method. Contaminated land can be reclaimed by adding lime or another alkaline. Some more methods are Bacteria control, Diverting water from mine site to prevent it from running through AMD forming materials.
