The effect of aerosols can be best described as ____
a. absorbing carbon dioxide
b. emitting carbon dioxide
c. reflecting sunlight and cooling the atmosphere
d. absorbing sunlight and warming the atmosphere
e. contributing to the formation of clouds
ANSWER: c
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What is the best way to deal with pollution?
A. Pollution cleanup only B. Pollution prevention only C. A combination of pollution cleanup and prevention D. The most popular way at the current time E. The cheapest way
The fly ash waste produced by the electric power plant in the industrial ecosystem in Kalundborg, Denmark is used by
A. greenhouses. B. pharmaceutical plants. C. cement manufacturers. D. fish farms. E. area homes.
On human time scales, nonrenewable resources ____.
A. may be considered inexhaustible B. can never be recycled C. are replenished by natural processes within hours D. are used without ever becoming depleted E. can be depleted much faster than nature can form them
In a solution of a gas in a liquid, the gas is called which of the following?
A) concentrate B) dissolvate C) solute D) solvent