On most of Earth's land surface, what is the most important agent in moving weathered rock fragments downhill?

A) wind
B) water
C) gravity
D) ice


Answer: B

Environmental & Atmospheric Sciences

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The Ogallala Aquifer is a source of

A. minerals. B. magma. C. freshwater. D. salt water.

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The temperate regions are characterized by ________

A) tropical cyclones B) high pressure C) easterly winds D) trade winds E) westerly winds

Environmental & Atmospheric Sciences

The chemical binder for many sedimentary rocks, such as limestone, is ________

A) calcium carbonate B) boron C) nitrogen D) basalt E) phosphorous

Environmental & Atmospheric Sciences

Which of the following countries is the world's leading producer of pig meat?

A) United States B) Germany C) Brazil D) China E) Russia

Environmental & Atmospheric Sciences