McqMate
| Q. |
Highest source of air pollution in the world is – |
| A. | Automobiles |
| B. | Industries |
| C. | Household wastes |
| D. | Aircraft |
| Answer» A. Automobiles | |
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Explanation: According to the US Environmental Protection Agency (EPA), automobile emissions are the number one source of carbon monoxide, lead, nitrogen oxides, and volatile organic compounds released into the atmosphere that are primarily responsible for air pollution. |
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