Which of the following commonly acts as a base in chemical reactions?

A. carboxylic acid
B. amine
C. alcohol
D. ketone
E. hydrocarbon


Answer: B

Environmental & Atmospheric Sciences

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Which of the following is NOT shown in a population pyramid?

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What is the pH level of the oceans predicted to be by 2050?

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In the immediate vicinity of the equator, a(n) _______________ climate is most common. (two words)

Fill in the blank(s) with correct word

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