In cholesterol, to which ring of the steroid system is the hydroxyl group attached?

A) A
B) B
C) C
D) D


A

Environmental & Atmospheric Sciences

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Dioxins, pesticides, and polychlorinated biphenyls are all types of

A. Toxic organic compounds B. Suspended solids and BODs C. Heavy metals D. Acidifying agents E. Inorganic toxic substances

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Additional clouds in a warmer world could ____

A) have a net warming effect B) have a net cooling effect C) have no warming or cooling effect D) either enhance or reduce warming

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On this map of the South Atlantic, which letter is on a transform fault?

A. A B. B C. C D. D

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After World War II, the peripheral states were commonly known as the Second World

Indicate whether this statement is true or false.

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