The size of the hypoxic dead zone in the Gulf of Mexico appears to vary annually in response to all of the following except ________.
A. periods of drought
B. annual fish catch
C. annual rainfall
D. the amount of fertilizer used
Answer: B
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The number of domesticated livestock in 2011 was over ________, more than ________ times the human population
A) 27 billion; 3 B) 15 billion; 2 C) 10 billion; 1.5 D) 3 billion; 0.5
According to the conveyor belt model of midlatitude cyclones,
A) adiabatic temperature changes are very important. B) adiabatic temperature changes are unimportant. C) absorption of shortwave radiation by aerosols is very important. D) absorption of shortwave radiation by aerosols is more important than storm rotation.
A person is more likely to die of ________ than any other cause
A) cardiovascular diseases B) infectious diseases C) starvation D) old age E) cancers
Clouds form if air is ________
A) cooled to the dew point B) below freezing C) stable D) unstable E) windy