Choose the correct historical sequence of fuel use in the U.S. from 1800 to the present.
A. oil, wood, coal, gas
B. wood, oil, coal, gas
C. coal, wood, gas, oil
D. wood, coal, oil, gas
Answer: D
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The Sun is the source of heat energy that determines:
A) air temperature. B) drives winds. C) controls precipitation patterns. D) all of the above.
Divergent evolution results in descendants with characteristics that are very similar to their ancestors’ characteristics
a. True b. False
Playas are ____
a. ancient Pleistocene shorelines representing a past, more humid climate b. ancient abandoned river courses representing a past, more humid climate c. intensely gullied d. occasionally and at least partly flooded with water
The ____ states that no group of people should bear an unfair share of the burden created by pollution, environmental degradation, or the execution of environmental laws.
A. environmental justice principle B. polluter-pays principle C. prevention principle D. precautionary principle E. reversibility principle