Human demand has exceeded Earth's ability to regenerate resources
a. True
b. False
True
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Worldwide reserves for most metals are projected to last
A. a few years. B. about 1000 years. C. a few decades. D. a few centuries.
The phrase "ecosystem capital" is better than the phrase "natural resources" because ecosystem capital includes
A) both the ecological and economic value of natural ecosystems. B) only the economic value of an ecosystem's goods and services. C) only the ecological value of natural ecosystems. D) neither the economic nor the ecological value of an ecosystem's goods and services.
Which of the following does NOT list processes in an order consistent with a logical progression through the rock cycle?
A. solidification, melting, burial B. erosion, deposition, burial C. burial, metamorphism, melting D. weathering, erosion, deposition E. uplift, weathering, erosion
The atomic weight of copper is less than that of silver. If you have a 10 g sample of each of these metals, which of the following is true?
A) You have fewer of atoms of copper than of silver. B) You have equal numbers of atoms of copper and silver. C) You have more atoms of copper than of silver. D) There is insufficient information to determine which of the above is true.