On a weather map, a line indicating constant pressure is best termed an

A) isoplot.
B) isotherm.
C) isotach.
D) isoline.
E) isobar.


E

Environmental & Atmospheric Sciences

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The first function of water vapor in the earth's original atmosphere was to:

A) create oxygen. B) increase the amount of carbon dioxide in the atmosphere. C) block the solar wind. D) fall as rain and thus fill the oceans. E) provide needed nourishment for primitive plants.

Environmental & Atmospheric Sciences

Which of the following involves energy storage in the water molecule in the form of latent heat?

A. melting, evaporation, sublimation B. freezing, condensation, deposition C. condensation, evaporation, deposition, sublimation D. melting, freezing, condensation, deposition

Environmental & Atmospheric Sciences

A sustained flow of electric charge requires

A. a potential difference. B. a resistance. C. electric polarization. D. an electric field.

Environmental & Atmospheric Sciences

Subsistence agriculture

A) produces food for the direct consumption of the growers and their families. B) is designed to produce a surplus for sale. C) does not include the raising of livestock. D) has grown in importance over the course of the twentieth century.

Environmental & Atmospheric Sciences