Adding more carbon dioxide to the atmosphere causes the concentration of carbonates in the ocean to
A. stay the same because of a positive feedback mechanism.
B. increase.
C. stay the same because of a negative feedback mechanism.
D. decrease.
Answer: D
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Greenwich Mean Time (GMT) is the time at
A) the International Date Line. B) the Prime Meridian. C) the meridian traveling through Washington DC. D) the meridian traveling through Paris, France.
Discuss the formation of eukaryotic organisms from prokaryotic organisms. What was required
for this transformation to occur? What will be an ideal response?
The largest nonpoint source of water pollution is:
A. Urban development B. Agriculture C. Industrial development D. Transportation
Most of the water supplied to homes is used ________
A) for recreation B) to wash, clean, and flush away undesirable materials C) for drinking D) to water house plants E) for cooking