Autotrophs that dwell in dark caves, in wells, or on the ocean floor often depend on which of the following biogeochemical processes?

A) chemosynthesis
B) photosynthesis
C) nutrient leaching
D) nitrogen fixing


A

Environmental & Atmospheric Sciences

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Which characteristic would not be used to define hazardous waste?

A. flammable B. corrosive C. chemically reactive D. toxic E. conductive

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Nonconsumptive water use involves the return of water to its source after use

Indicate whether the statement is true or false

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Pangaea broke apart during the Triassic period

a. True b. False

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Investment in improved transportation and communication systems is usually done with the intent to

A) increase economic growth. B) increase tax revenues. C) increase transportation costs. D) increase regional divides.

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