Biology

Rohan Randolph

19 April, 04:16

12) How do harvesting wood and surface mining for coal affect ecosystems?

a) Both cause soil erosion by removing anchoring roots.

b) Both cause the water table to fall, which causes water shortages for animals in the area.

c) Both cause aeration of the soil when natural minerals are removed, which increases the soil

quality

d) Both cause ecosystem stabilization by removing excess vegetation that is harmful to the

animal populations in the area.