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cluponka [151]
3 years ago
13

Nonpoint sources of pollution a. include smokestacks and automobile exhaust pipes b. are more difficult to control than point so

urces c. are cheaper and easier to identify than point sources d. enter ecosystems from single identifiable sources
Biology
1 answer:
kifflom [539]3 years ago
4 0
B. are more difficult to control than point sources. This is because A. is wrong (point source), and C. is wrong, because it doesn't necessarily cost less or more to identify the sources. D. may be right, as non point sources are natural, such as snow melts or rain.
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