Sagot :
[tex]{ \huge\text{ Answer}} [/tex]
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11. This is the condition of air that is contaminated brought by smoke and fumes emitted by vehicles, power plants and factories.
- D. Air pollution
[tex]\sf{{ \tt\underline{{ Air \: Pollution}} \: }}[/tex] is the condition of air that is contaminated brought by smoke and fumes emitted by vehicles, power plants and factories.
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