An open-pit iron mine has been abandoned for several - id13992842 от starreee 22.08.2022 18:07

Question

Advanced Placement (AP): An open-pit iron mine has been abandoned for several years. Before they left, the miners filled in the pits with soil that included tailings and other iron containing waste products from the mine s productive years. Which of the following hazards do the pits most likely pose to the surrounding environment? I. Acid mine drainage II. Cyanide leaching III. Increased carbon emissions A.) I only B.) II only C.) III only D.) I and III only

starreee · Accepted Answer

The correct option is B.
A cover crop is a crop that is purposely grown for the enrichment of the soil. Cover crop is used principally to improve the quality of the soil and to prevent erosion and run off. Cover crops prevent erosion by holding the soil particles together with their root, their decaying matter also serve to increase the fertility of the soil.

An open-pit iron mine has been abandoned for several years. Before they left, the

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