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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

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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2 votes
Which factor is a major contributor to outdoor air pollution?

a. radon
b. fossil fuels
c. ultrafine particles
d. carbon dioxide

User Altiano Gerung
by
8.2k points

2 Answers

3 votes

Answer:

Fossil Fuels.

Explanation: Just took the test :)

User HumanWrites
by
8.4k points
5 votes
Outdoor pollution primarily results from the combustion of fossil fuels by industrial plants and vehicles
Answer- fossil fuels
User Arcane
by
7.6k points
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