?Match the term with the correct description.

A. ?bacteria, viruses, protozoa, parasites
B. ?oil, gasoline, plastics, pesticides, cleaning solvents
C. ?lead, mercury, arsenic
D. ?nitrate and phosphate
E. ?biodegradable animal wastes and plant debris


A. ?infectious agents
B. ?organic chemicals
C. ?heavy metals
D. ?plant nutrients
E. ?oxygen-demanding wastes

Environmental & Atmospheric Sciences

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The rock that makes up ocean basins has a density of ________ and is made of ________

A) 1.9 g/cm3; sandstone B) 4.5 g/cm3; gneiss C) 3.0 g/cm3; basalt D) 2.7 g/cm3; granite

Environmental & Atmospheric Sciences

The least amount of energy needed to produce forced vibrations in an object occurs

A. at its natural frequency. B. below its natural frequency. C. above its natural frequency. D. none of the above

Environmental & Atmospheric Sciences

Which of the following defines the term monsoon?

A. the short summer rainy season observed in some locations B. a period of heavy rainfall produced by thunderstorms C. a short dry season D. a seasonal shift in wind circulation

Environmental & Atmospheric Sciences

Which of the following is an accurate statement about tropical rain forest climates?

A. They are influenced by the ITCZ year-round. B. They experience a cold season. C. Thunderstorms rarely occur there. D. They contain many xerophytes.

Environmental & Atmospheric Sciences