Currently, ice sheets and glaciers cover ____ of Earth's surface
A) about 10 percent
B) less than one percent
C) about one-quarter
D) about two-thirds
A
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Oceanic lithosphere
A. moves gradually toward the midocean ridges, where it is consumed. B. is made of alternating bands of rocks of two different ages. C. records magnetic "stripes" of normally and reversely magnetized rocks. D. is made of alternating bands of rocks of different compositions.
In what way were humans influencing climate prior to the Industrial Revolution?
A) hunting and gathering excessively B) gathering wood for individual cooking fires C) alteration of ground cover for grazing and agriculture D) releasing CO2 by burning large quantities of coal
Gasoline, diesel fuel, jet fuel, and motor oil are examples of _____________.
Fill in the blank(s) with the appropriate word(s).
What is a bedding plane?
A. specifically regolith layers B. flat surfaces separating layers C. large areas where sediment is deposited D. underlying bedrock making up the crust E. extensive horizontal formation of extrusive rock