A large volcanic eruption can slightly cool the climate for a few years because ________.
A. volcanoes emit nitrogen (N2), a cooling agent in the atmosphere
B. material they eject into the atmosphere reduces the amount of sunlight reaching Earth
C. lava absorbs massive amounts of carbon dioxide as it cools
D. volcanic gases bind with greenhouse gases, removing most of them from the atmosphere
E. volcanic ash is good for soils and that speeds the growth of forests
Answer: B
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burned by wildfires are not very susceptible to debris flows the following wet season BECAUSE scorched chaparral vegetation releases a waxy liquid that waterproofs the ground. a. The assertion and the reason are both correct, and the reason is valid. b. The assertion and the reason are both correct, but the reason is invalid. c. The assertion is correct, but the reason is incorrect. d. The assertion is incorrect, but the reason is correct. e. Both the assertion and the reason are incorrect
Urbanization generally increases the lag time between the peak of rainfall and the peak of the resulting flood
Indicate whether the statement is true or false
A single gene can result in the formation of more than one protein as a result of which of the following?
A) genetic doubling B) gene splicing C) multigenomics D) none of these
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