The upper part of a thunderstorm cloud is normally __________ charged, and the middle and

lower parts are __________ charged.
a. negatively, negatively
b. negatively, positively
c. positively, positively
d. positively, negatively


d

Environmental & Atmospheric Sciences

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A great tool for visualizing and comparing a population's age and sex composition is:

A. population pyramids. B. demographic transition model. C. doubling time. D. the demographic equation.

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The grinding and shaping of rock surfaces by the "sandblasting" action of particles carried by wind is

A) abrasion. B) deposition. C) saltation. D) deflation.

Environmental & Atmospheric Sciences

_____ contains the most proven reserves of oil in the world, while _____ consumes the most

a. Mexico; Japan b. Kuwait; France c. Venezuela; the United States d. The United States; the United States

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O2 can be produced by the reaction 2 KClO3(s) ? 2 KCl(s) + 3 O2(g). In one experiment 0.312 g of O2 were formed. How much KClO3 was decomposed?

A) 0.484 g B) 0.797 g C) 1.19 g D) 1.79 g

Environmental & Atmospheric Sciences