Which of the above molecules is a phenol?
A. a
B. b
C. c
D. d
E. a and d
Answer: A
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What can you deduce about the activation energy of a reaction that takes billions of years to go to completion? How about a reaction that takes only fractions of a second?
A. The activation energy of both these reactions must be very low. B. The slow reaction must have a low activation energy, while the fast reaction must have a high activation energy. C. The slow reaction must have a high activation energy, while the fast reaction must have a low activation energy. D. The activation energy of both these reactions must be very high.
Which of the following features defines monsoon depressions?
A. upper-level jet streams B. huge drainage gullies that are produced during the heavy rains in the summer monsoon C. large reservoirs used for irrigation that fill with water during the summer monsoon D. low-pressure areas that enhance rainfall during the summer monsoon
Stenothermal organisms are found predominantly in the ________
A) deep, coastal ocean B) deep, open ocean C) shallow, coastal ocean D) shallow, open ocean E) all parts of the ocean
Which of the oceans has, by far, most of its surface south of the Equator?
A) Arctic B) Atlantic C) Pacific D) Indian E) Peruvian