Multiple Choice
Approximately 60 percent of Earth's ecosystem services are currently being degraded or are being used unsustainably.One ecosystem service that is probably not degrading, at least at present, is
A) agricultural soils.
B) atmospheric oxygen supply from photosynthesis.
C) the regulation of flooding.
D) the availability of clean water.
E) the ability to control pollution.
Correct Answer:

Verified
Correct Answer:
Verified
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