The extinction of a particular population from a given area (but not the entire species globally) is called ________
A) evolution B) extinction C) extirpation D) adaptation E) emigration
C
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The source of nitrogen in the nitrogen cycle is found in rocks.
Answer the following statement true (T) or false (F)
Every year, the clockwise circulation around the subtropical high helps to:
A) transport 40 million tons of dust from the Sahara Desert to the Amazon rainforest. B) deliver 20 million tons of carbon dioxide generated in Africa into the air above North America. C) speed ozone depletion by lifting CFCs into the stratosphere. D) lead hurricanes eastward across the Atlantic.
One of Brown's Plan B goals toward shifting to a more environmentally and economically sustainable future is to stabilize ____ growth.
A. poverty B. economic C. hazardous waste D. population E. pollution
Which of the following would produce a nuclear reaction?
A) bombarding uranium-238 with protons B) bombarding uranium-235 with protons C) bombarding uranium-238 with neutrons D) bombarding uranium atoms with electrons E) bombarding uranium-235 with neutrons