Explain briefly why a divergent plate boundary is also called a "constructive margin or boundary."
What will be an ideal response?
Divergent plate boundaries are where new lithosphere is created so that type of boundary causes the "construction" of new lithosphere.
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Arched folds where limbs dip away from the hinge line are called
A) inclines. B) anticlines. C) synclines. D) reclines.
The Environmental Protection Agency considers this city to have the worst ozone pollution
A) Los Angeles B) Chicago C) New York D) Phoenix
After the eruption of Mount St. Helens, Spokane, Washington,
A) saw its diurnal temperature cycle flatten out. B) saw its daytime temperatures increase sharply. C) saw its nighttime temperatures decrease sharply. D) saw a marked decrease in its outgoing amount of terrestrial radiation. E) did not have any significant changes in temperature.
Lightning flows ____
a. only in areas of heavy rainfall b. from the top of a thundercloud to the ground, passing through the lower cloud c. from the cloud and the ground to a midpoint at low altitude d. only in the area directly below the thundercloud e. from the cloud to the ground in short, zig-zagging steps