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Which of the following contribute to dirty air? Check all that apply. 1photosynthesis 2fossil fuels 3smoking 4mold 5respiration
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Which of the following contribute to dirty air? Check all that apply.

1photosynthesis

2fossil fuels

3smoking

4mold

5respiration

User Gaurav Thantry
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8.4k points

1 Answer

5 votes

Answer: 2, 3, 4

Step-by-step explanation:

trust

User Cesarluis
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