How much oxygen occupies a volume of air near the Earth's surface?

A. 21%
B. 43%
C. 78%
D. 84%


Answer: A

Environmental & Atmospheric Sciences

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An organism that tolerates a wide range of salinities is referred to as ________

A) euryhaline B) hypertonic C) hypotonic D) isotonic E) stenohaline

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Indicate whether the statement is true or false

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The two types of heat recognized by meteorologists are:

A) sensible heat and conductive heat. B) latent heat and sensible heat. C) kinetic heat and radiative heat. D) latent heat and kinetic heat.

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