Looking at Figure 14.4.2, at current usage, how many years are the coal reserves of the United States projected to last?
A) 34
B) 240
C) 107
D) 140
E) 188
Answer: B
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An entrepreneur wishes to make a profit by purchasing gold by weight at one altitude and selling it at the same price per newton at another altitude. The entrepreneur should
A. buy at a high altitude and sell at a low altitude. B. buy at a low altitude and sell at a high altitude. C. disregard altitude because it makes no difference. D. none of the above
Any animal that eats other animals, living or dead, as a source of nutrients:a
ectotherm d. carnivore-scavenger b. endotherm e. herbivore c. carnivore
The 1997 Kyoto Protocol went into effect in 2005 with only seven of the world's 194 nations not ratifying the agreement. Which country did not ratify it?
A. The Netherlands B. Canada C. the United States D. Germany E. Switzerland
The boundaries between the distinct layers found in many sedimentary rocks are called ____
a. foliation b. outcrops c. rock cycles d. bedding planes