Mass extinctions typically affect polar and high-latitude organisms the most
a. True
b. False
False
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President Reagan's plane came close to being brought down by a
A) microburst. B) dust devil. C) gravity wave. D) willy-willy. E) Boulder windstorm.
Time zones are established roughly every 15 degrees longitude so that local times correspond to similar hours of day and night.
a. true b. false
If a rock is metamorphosed but does not contain foliation or lineation, what has probably happened to the rock?
A. It was only flattened during metamorphism. B. It has been deformed but not metamorphosed. C. It has not been metamorphosed. D. It has been flattened and stretched while it was metamorphosed. E. It has been metamorphosed but not deformed.
The most common minerals in the crust are
A. sulfates. B. carbonates. C. silicates. D. sulfides.