Glaciers reshape Earth's surface because they
A) move tectonic plates.
B) pluck rocks out of the ground, carry them away, and deposit them.
C) move slowly.
D) contain enormous amounts of water.
B
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Early in the 18th century, Thomas Malthus recognized the connection between human population growth and ________
A) increasing death rates because of the effects of Industrial Revolution B) increasing medical issues leading to high mortality C) the geographical size of the country D) decreasing birth rates E) resource availability
The albedo of the Earth's surface is about 4 percent, yet the combined albedo of the Earth and the atmosphere is about 30 percent. Which of the following conditions BEST explains why this is the case?
A. low albedo of clouds, low albedo of water B. high albedo of clouds, low albedo of water C. low albedo of clouds, high albedo of water D. high albedo of clouds, high albedo of water
A solid is not considered fluid because
A) of the fixed arrangement of its atoms or molecules. B) of the heavy nature of its atoms or molecules. C) its atoms or molecules are bound as close together as possible. D) its atoms or molecules are under too much pressure.
On the average, which of the following is true regarding the distribution of shortwave and longwave energy at Earth's surface by latitude?
A) The equatorial zone is a region of net deficits. B) The polar regions are areas of net surpluses. C) The distribution shows an imbalance of net radiation from equator to poles. D) More energy is lost than is gained in the equatorial regions.