Coal beds originate in ________
A) freshwater coastal swamps and bogs B) shallow lakes in a dry, desert region
C) channels of fast-moving streams D) deep, marine basins below wave action
A
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Which ocean has the deepest average depth?
A) Atlantic B) Pacific C) Southern D) Indian E) Arctic
Which of the following modes of transportation are usually reserved for speedy delivery of small-bulk, high-value packages?
A) airplanes B) ships C) trains D) trucks E) barge
There is currently ________ evidence to indicate that the increase in Atlantic tropical storms and hurricanes is due to a longer-term trend in sea surface temperatures
A) little, if any B) increasing amounts of C) much D) overwhelming
The area of Africa is approximately 11.7 million square miles. Which of the following is the correct way to express this number in scientific notation?
A) 1.17 x 10^5 B) 1.17 x 10^6 C) 1.17 x 10^7 D) none of these