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only4Lv10
29 Jun 2022
Which of the following are the main sources of indoor air pollution?
- Excess moisture
- New carpets
- Outdoor pollution
- Pesticide
Select the correct answer from the codes given below-
[A] 1,2,3,4
[B] 3 and 4 only
[C] 1,2 and 4 only
[D] 2,3 and 4 only
Which of the following are the main sources of indoor air pollution?
- Excess moisture
- New carpets
- Outdoor pollution
- Pesticide
Select the correct answer from the codes given below-
[A] 1,2,3,4
[B] 3 and 4 only
[C] 1,2 and 4 only
[D] 2,3 and 4 only
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