Sarah has asthma and lives in a big city with a lot of traffic. Sometimes, pollution in the air outside it makes it difficult for her to breathe. Which type of pollution is associated with emissions from cars on the highway?
natural source
point source
non-point source
thermal source
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Sarah has asthma and lives in a big city with a lot of traffic. Sometimes, pollution in the air outs...
Mathematics, 27.05.2020 23:10
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