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Which factor is a major contributor to outdoor air pollution? a. radon b. fossil fuels c. ultrafine particles d. carbon dioxide
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Jun 13, 2020
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Which factor is a major contributor to outdoor air pollution?
a. radon
b. fossil fuels
c. ultrafine particles
d. carbon dioxide
Biology
middle-school
Altiano Gerung
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Answer:
Fossil Fuels.
Explanation: Just took the test :)
HumanWrites
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Jun 15, 2020
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HumanWrites
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Outdoor pollution primarily results from the combustion of fossil fuels by industrial plants and vehicles
Answer- fossil fuels
Arcane
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Jun 17, 2020
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