A U.S. cap-and-trade (or emissions trading) program was used to reduce emissions of ____.

A. nitrogen oxides (NOx)
B. carbon monoxide (CO)
C. sulfur dioxide (SO2)
D. chlorofluorocarbons (CFCs)
E. lead


Answer: C

Environmental & Atmospheric Sciences

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What will be an ideal response?

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Which of the following best matches the description?Greenhouse gas released into the atmosphere through the use of fertilizers and fossil fuels

A. Greenhouse effect. B. Kyoto Protocol. C. CFCs. D. climate change. E. Carbon dioxide. F. Nitrous oxide. G. greenhouse gases. H. Global warming. I. IPCC. J. Methane.

Environmental & Atmospheric Sciences

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A) photochemical fog B) sulfuric aerosols C) industrial fog D) industrial smog E) inversion smog

Environmental & Atmospheric Sciences

Agricultural runoff consists of a mixture of compounds that serve as nutrients. The two primary nutrients are ________ and ________.

A. nitrogen; sulfur B. nitrogen; phosphorus C. nitrogen; oxygen D. nitrogen; carbon

Environmental & Atmospheric Sciences