Glacial ice sheets are the largest glaciers and they currently cover ________
A) only Antarctica
B) Greenland and Antarctica
C) The Arctic Sea, the Alps, Greenland, Antarctica, and Alaska
D) Antarctica, Greenland, Alaska, the Andes Mountains, the Arctic Sea, and the Alps
E) Alaska, Antarctica, and Greenland
B
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Which free-trade agreement is themost important in the Americas?
a. Southern Cone Common Market b. Mercosur c. NAFTA d. FTAA e. Organization of American States
Compared to less resistant rocks, rocks that are more resistant to weathering tend to form ____
a. valleys b. cliffs c. regolith d. talus
Which of the following is TRUE regarding the effects of the Coriolis force?
A) The Coriolis force is zero along the equator, increasing to one-half of maximum at 30° latitude and maximum at the poles. B) The amount of Coriolis deflection is uniform from equator to poles. C) Coriolis deflection occurs only along parallels, not meridians. D) The Coriolis force is zero at the poles, increasing to maximum along the equator.
________ is the idea that continents move freely over Earth's surface, changing their positions relative to one another.
A. Continental drift B. Sea floor spreading C. Plate tectonics D. Plate spreading E. Continental collisions