The biodiversity and productivity or coral reefs is most similar to that of
A) desert environments.
B) a natural prairie.
C) tropical rain forests.
D) a river system.
C
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Urban areas create large amounts air, water, and soil pollution, as well as large amounts of solid waste. Name two other types of pollution that are more common in urban areas compared to rural areas.
What will be an ideal response?
When did the current warming trend observed on Earth start?
A. about 500 years ago B. about 100 years ago C. about 1,000 years ago D. about 10,000 years ago
Endogenic processes:
a. originate on Earth's surface. b. decrease relief. c. include tectonic processes. d. include erosion. e. include weathering.
Humus is ________
A) a mixture of living organisms and their waste products B) light colored or nearly white C) an indicative of poor soils D) partially decomposed organic matter E) poisonous to soil microorganisms