When a windmill turns to generate electricity, the amount of kinetic energy input in the process ________
A) is greater than the amount of electrical energy produced
B) is less than the amount of electrical energy produced
C) is unrelated to the amount of electrical energy produced
D) equals the amount of electrical energy produced
A
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During the last 750,000 years
A) Earth has had at least two ice ages. B) ice volume changes have been highest in the Southern Hemisphere. C) there has been a pattern of roughly 100,000-year cycles in climate change. D) there has been little change in climate.
An isoline is a(n)
A) imaginary line connecting all points along the same longitude. B) indicator on a map of the map scale. C) imaginary line connecting all points along the same latitude. D) a line on a map connecting points with a constant value. E) arc crossing all meridians of longitude at the same angle
The zone of seasonally frozen ground that exists between the subsurface permafrost layer and the ground surface is called the
A) gelifluction. B) discontinuous region. C) active layer. D) talik.
Precipitation in desert areas is ____
a. caused by cyclonic activity b. associated with the high sun season c. irregular, unreliable, and sometimes extreme d. caused by orographic lifting of cT air masses e. quite predictable, but minimal