Permanent settlements existed prior to the beginning of recorded history around ________ years ago

A) 10,000
B) 1,000
C) 200,000
D) 24,000
E) 5,000


Answer: E

Environmental & Atmospheric Sciences

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A) blow west to east in the Northern Hemisphere and east to west in the Southern Hemisphere. B) follow a straight path near the surface. C) straddle the equator and the poles, creating a north-south wind pattern. D) blow west to east in both hemispheres.

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Instruments that measure humidity are called ____

a. psychrometers b. thermometers c. hygrometers d. dew cells e. liquid-in-glass thermometers

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The longest global trade route before the rise of Europe was the 5000-mile (8000 km) __________ __________ along which goods moved overland (and on the Mediterranean Sea) from Venice to Chang-an (Xi'an) in China

Fill in the blank(s) with correct word

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The phenomenon causing the greenhouse effect is that ________ in the lower atmosphere selectively absorb(s) reradiated ________ radiation.

A. Ozone; visible light B. Hydrocarbons; very short wavelength C. Carbon dioxide; ultraviolet D. Carbon dioxide, methane, and other gases; infrared (heat) E. Carbon dioxide, methane, and other gases; insolation

Environmental & Atmospheric Sciences