Which of the following is true?
A. the higher the species richness, the lower the productivity
B. the higher the species richness, the lower the sustainability
C. the lower the species richness, the greater the productivity
D. the lower the species richness, the greater the sustainability
E. the higher the species richness, the greater the sustainability
Answer: E
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Which of the following statements describes where the sun rises and sets on June 22 in the middle latitudes of the Northern Hemisphere?
A. It rises in the northeast and sets in the southwest. B. It rises in the southeast and sets in the southwest. C. It rises in the southeast and sets in the northwest. D. It rises in the northeast and sets in the northwest.
An ideal source region of air masses should be:
A) physically uniform. B) located at or near a pole. C) small. D) located at or near the equator. E) roughly half land, half water.
In the three-cell model, the wind belt observed on the poleward side of the polar front is called the?
a. ?polar easterlies. b. ?prevailing westerlies. c. ?northeast trades. d. ?doldrums. e. ?polar westerlies.
During the Ice Age, the climate was occasionally warmer than it is today
Indicate whether the statement is true or false