Biology, 28.08.2019 00:40 heyItsLuna234

Over the past 20 years, the major pollutants in our world have
a. decreased significantly
b. increased significantly
c. stayed at the same levels
d. decreased slightly

Answers: 1

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Over the past 20 years, the major pollutants in our world have
a. decreased significantly

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More questions: Biology Another questions

Over the past 20 years, the major pollutants in our world have a. decreased significantly b. increased significantly c. stayed at the same levels d. decreased slightly

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Other questions on the subject: Biology

Questions in other subjects:

Over the past 20 years, the major pollutants in our world have
a. decreased significantly
b. increased significantly
c. stayed at the same levels
d. decreased slightly