Approximately what percentage of water on Earth is contained within the oceans?

A. 31%
B. 52%
C. 97%
D. 85%
E. 12%


Answer: C

Environmental & Atmospheric Sciences

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In the _____________ monsoon, the land loses its relative warmth while the sea and coastal waters stay warm longer

Fill in the blank(s) with correct word

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Isotopes are atomic nuclei that are radioactive.

Answer the following statement true (T) or false (F)

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Currently, desert and steppe lands cover about what percentage of Earth's land area?

A. 3% B. 10% C. 30% D. 66%

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Which of the following gases is an efficient absorber of the earth's emitted energy?

A) carbon dioxide B) oxygen C) nitrogen D) argon E) none of the above

Environmental & Atmospheric Sciences