Glacial ice flows from the zone of accumulation into the zone of ablation
a. True
b. False
Indicate whether the statement is true or false
True
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Newton's Second Law:
A) holds that the net force on an object is the product of the object's mass and its acceleration. B) does not take into account the effects of drag on a falling object. C) explains why a falling object will accelerate indefinitely. D) is not adequate for the study of falling droplets; Einstein's relativity equations must be applied.
Rotational grazing allows grazing livestock to
A. Use the most fertile pastures continuously B. Use a small area for a short time C. Depend more on domestic pastures D. Produce more young animals with less range E. Use only the most nutritious plants in a pasture
Diffusion of Internet service is following the earlier pattern of television, except that
A) the United States' share of world use is expanding. B) diffusion is much faster. C) diffusion is much slower. D) the expansion of service is faster in Africa than Asia. E) the initial use was in less developed countries.
Factors contributing to desertification in the Sahel include all of the following except
A) deforestation and overgrazing. B) population increases. C) southward expansion of desert conditions following persistent drought. D) lack of a regional environmental policy. E) northward shift of the ITCZ.