If human-caused CO2 emissions were completely halted today, how long would it take for significant temperature drop to occur in the upper atmosphere?
a. ten to twenty years
b. twenty to fifty years
c. fifty to one hundred years
d. one hundred to one hundred fifty years
e. at least one thousand years
ANSWER: e
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Religions provide guidance when people are confronted by rapid change, even in
A) large scientific research firms. B) many governmental agencies. C) local schools. D) secular modern societies.
Atmospheric Brown Clouds (ABCs), such as those in India and China,
A) contain large amounts of SOX and NOX and cause acidified precipitation. B) contain black carbon particles and sulfate crystals, which decrease sunlight and rainfall. C) have been artificially produced in an attempt to decrease global warming. D) are partially responsible for the ozone hole in the southern hemisphere.
How does excess heat from the Earth's early formation reach the surface?
A. convection B. conduction and convection C. conduction D. None of these choices are correct.
Where does the quartz in granite typically end up?
A. as small clay minerals that are deposited in lakes and the sea B. it ends up as sand in rivers, dunes, and beaches C. it is converted into feldspar and weathers into clays D. quartz does not weather and so it keeps the granite from weathering