With an overabundance of elk, the next population in the Yellowstone ecosystem to be directly affected was/were ________
A) mountain lion
B) wolves
C) songbird
D) beaver
E) plant species
E
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Generally, cooler air temperatures can hold more moisture than warmer air
Indicate whether the statement is true or false.
Maps of the Difficulty: Global distribution of the mean height of the 500 mb surface show a decrease in height at the pole, which is due primarily to:
A) low temperatures at the pole. B) low-pressure systems at the pole. C) the absence of the Coriolis effect at the pole. D) the strong magnetic field at the pole.
Why are ancient impact craters difficult to identify on Earth?
A) they typically have been eroded or infilled with younger sediments B) impact craters on Earth are smaller than those on the Moon or Mars C) they typically lack shock metamorphic minerals D) there have been very few meteorite impacts on Earth
Which process below will change a moist layer of stable air into a deck of low stratocumulus clouds?
a. mixing b. lifting c. cooling the surface d. heat the top of the layer e. subsidence