A very flat surface underlain by a dry lake bed of hard, mud-cracked clay is called a

A. plateau
B. ventifact
C. playa
D. none of the preceding


Answer: C

Environmental & Atmospheric Sciences

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Spheroidal weathering is most common in:

a. sandstone b. granite c. shale d. basalt

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A glacier begins to flow when the ice reaches a critical thickness of about:a

100 meters. b. 40 meters. c. 20 meters. d. 10 meters. e. 5 meters

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Why is it so difficult for wind to pick up clay-sized particles?

A) They are too large for the wind to carry. B) The wind has a near-zero velocity closest to the surface and can't pick them up. C) The clay particles are often buried under larger sediments. D) There is too much clay to carry.

Environmental & Atmospheric Sciences

Hail is usually associated with what cloud?

a. stratus b. cumulus c. stratocumulus d. altocumulus e. cumulonimbus

Environmental & Atmospheric Sciences