Which of the following gas mainly responsible for ozone layer depletion:
- Chlorofluorocarbon
- CO2
- Nitrogen oxide
- Sulphur dioxide
The reaction which releases or gives off heat is called:
- Exothermic Reaction
- Endothermic Reaction
- Oxidation Reaction
- Neutralization Reaction
The chemical formula of ozone gas is:
- O2
- NO2
- O3
- CO2
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