The oldest oceanic crust is slightly less than ____ years old

a. 300,000
b. 4.6 billion
c. 70,000
d. 180 million
e. 3.96 billion


d

Environmental & Atmospheric Sciences

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Indicate whether this statement is true or false.

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Bioremediation of hazardous waste uses ____ to detoxify hazardous waste.

A. charcoal filters B. cement kilns C. plants D. bacteria and enzymes E. combustion

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Which of the following reactions will consume the most oxygen?

A) complete combustion of one mole of 2,3-dimethylhexane B) complete combustion of one mole of 2,3,4-trimethylpentane C) complete combustion of one mole of octane D) None, they all consume the same amount of oxygen.

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Which climate control can lead to both cooling and warming?

A. less atmospheric aerosols B. more carbon dioxide C. more clouds D. less equatorward currents E. more ice surfaces

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