Regions of rugged, barren topography with prominent ridges and ravines resulting from gully erosion of soft material are known as ____
a. mesas
b. plateaus
c. pediments
d. badlands
d
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Which clouds are associated with rain?
A. cirrus B. nimbus C. stratus D. cumulus
Which of the following is true about how weathering affects fractured rocks?
A. Preferential weathering along fractures can cause blocks to become rounded. B. Weathering affects rocks from the outside in, forming an outer weathered zone or rind. C. Weathering attacks corners from three sides and so these are preferentially removed. D. All of these choices are correct.
Mass extinctions typically affect polar and high-latitude organisms the most
a. True b. False
Ascending air at the equator and descending air around 30°N and S latitudes create semicircular air circulation routes known as ________.
A. the trade winds B. the Subtropical High Pressure Zone C. westerly winds (westerlies) D. Hadley cells E. the semi-troposphere