Most of the population of North America lives in cities, approximately what percent?

a. 80%
b. 65%
c. 90%
d. 70%


A

Environmental & Atmospheric Sciences

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A prokaryotic cell has a well-developed nucleus and organelles, including mitochondria and

plastids. Indicate whether the statement is true or false.

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At what time of year is the earth's axis not tilted either toward or away from the Sun?

A) autumnal equinox B) aphelion C) summer solstice D) perihelion E) winter solstice

Environmental & Atmospheric Sciences

The length of daylight gets progressively longer going south from the equator on:

A) September 22. B) March 21. C) December 21. D) June 21.

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The modified Mercalli scale measures ____

a. earthquake focus depth b. earthquake damage c. earthquake magnitude d. eruption volume e. eruption type

Environmental & Atmospheric Sciences