Which condition typically contributes to major air pollution episodes lasting several days or longer?
A) a radiation inversion
B) a subsidence inversion
C) persistent winds
D) overcast skies
B
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What may result from transportation and deposition?
A) weathering and erosion B) cooling and crystallization C) fragments become sediments D) precipitation and lithification
The Enhanced Fujita scale pertains to the ____
A) size of a tornado producing thunderstorm B) amount of hail that falls from a mature thunderstorm C) size of the thunderstorm image on a radar screen D) wind speed of a tornado
This method of soil cultivation reduces soil erosion and runoff
A) swidden farming B) multi-cropping C) short fallow D) conservation tillage E) truck farming
Which of the following actions is required for the recycling loop to be successful?
A. Genetically modified bacteria must be found to consume toxic components. B. Consumers must purchase only products made in the United States. C. Consumers and businesses must purchase products made from recycled materials. D. Corporations must make more products from virgin (raw) materials.