Multiple Choice Question Answer XVI — task. Science CBSE, Class 9.

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1. Environmental planning will

Reduce spoilage by bacteria
Cause more wildlife loss
Reduce air and water pollution
None of these

2. An example of aerosol spray is

Di-iodo dibromomethane
Tetrachloromethane
Trichloromethane
Dichlorodifluoromethane

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