Compared with the photons of light that shine on glass, the photons that emerge are
A. of lowered energy.
B. different though identical.
C. a mixture of being the same and identical.
D. the same photons.
Answer: B
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Which of the following represents a type of top-down regulation for wildflowers living in a forest?
A) Types of minerals in the soil B) Amount and timing of precipitation C) Strength and frequency of sunlight D) Herbivores in the region
A rain shadow occurs on the leeward side of a mountain
Indicate whether the statement is true or false
Because surface winds circulate around a midlatitude cyclone, why do they move from west to east across North America?
A) The winds aloft, particularly the jet stream, move from west to east and steer the storm system. B) The storm is forced toward the warm arm mass, which "pulls" the storm toward it to the east. C) The continental polar air mass that "pushes" the cold front drive the storm east. D) The Bermuda high in the Atlantic ocean forces circulation it, which steers the storm systems in North America.
What caused urban sprawl to occur around so many U.S. cities during the past five decades or so, and how can smart growth policies be useful in slowing it down in future years?
What will be an ideal response?