The 1970 Clean Air Act's policy of command and controlled regulations of air pollution attempted to limit
A) all of the primary pollutants but not the secondary air pollutants.
B) the ambient level of air pollutants below the primary standard levels.
C) levels of air pollutants to 150% of the primary standard levels.
D) air pollution at the level of the consumer by adding a pollution tax.
B
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The coral reef community ____
A) ?is made up exclusively of various species of coral polyps B) ?is limited to carnivorous animals C) ?lies only within the kelp forest habitat of the tropics D) ?is a highly productive and diverse collection of organisms in shallow water environments
The frequent repetition of an act, to the extent that it becomes characteristic of a group of people is a
A) custom. B) popular culture. C) habit. D) taboo. E) character trait.
One method of biomimicry, in which the wastes produced by one manufacturer become the raw materials for another manufacturer, is called ____.
A. waste transference B. the reusability web C. the precautionary principle D. a resource exchange web E. ecoindustrialism
Ice caps are smaller than ice sheets
a. True b. False Indicate whether the statement is true or false