Multiple Choice
Which statement is most correct concerning volcanic effects on our atmosphere?
A) Pollution of the atmosphere by sulfur compounds contributes significantly to acid rain.
B) Gases from volcanoes condense to make natural fertilizer, boosting plant growth.
C) If it were not for active volcanism there would be no free oxygen in the atmosphere.
D) Active volcanism is responsible for maintaining atmospheric levels of nitrogen.
Correct Answer:
Verified
Correct Answer:
Verified
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