Researchers at the Malpai Borderlands in southern New Mexico and Arizona have found evidence that ________
A) desertification has resulted in soil compaction and erosion
B) fire suppression has played a major role in the degradation of the rangeland in the area
C) the region cannot sustain any level of commercial ranching
D) ranchers have been planting mesquite to replace lost grasslands
E) ancient nomadic tribes permanently altered the landscape by settling down and ranching in one area
Answer: B
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Global warming is obviously associated with temperature increases. List two additional effects that global warming may have upon Earth's climate
What will be an ideal response?
Stream terraces along the sides of river valleys are usually evidence of:
a. mass wasting. b. trellis drainage. c. distributary channels. d. major changes in base level. e. wind action.
What type of data support the idea that shear zones grow in width as they accumulate displacement, and where would we look for the last increment of strain?
What will be an ideal response?
Growing sugar beets for sugar, as an alternative to importing sugar made from sugar cane, is an example of
A) import substitution. B) a quaternary sector activity. C) flexible production. D) vertical disintegration. E) deindustrialization.