Much of the increasing global need for electricity can be met by solar sources because
A) about 70% of electrical demand occurs when the sun is shining.
B) modern battery technology now makes electrical storage cheap and efficient.
C) only about one square meter of photovoltaic cells are needed to heat a home.
D) even at night most solar power systems run at about 50% of normal capacity.
A
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The multiyear period of severe wind erosion and soil loss occurred in the Great Plains during the 1930s is known as
A) desertification. B) the Grapes of Wrath. C) the Black Blizzard. D) the Dust Bowl.
Snow is changed by ________ into glacial ice.
A) rain B) basal slip C) ablation D) pressure and weathering E) millions of years of time
The real evaporation loss and transpiration by plants at a location is called _______________ evapotranspiration
Fill in the blank(s) with correct word
This diagram features a
A. anticyclone, northern hemisphere. B. cyclone, northern hemisphere. C. anticyclone, southern hemisphere. D. cyclone, southern hemisphere.