Question

D. State whether the following statements are true or false. Correct the false statements.
1. Ozone is present in mesosphere of atmosphere.
2.
Photochemical smog is caused by the action of sunlight and fog on pollutants.
3.
A catalytic converter converts the harmful carbon monoxide and nitrogen dioxide gases into less harmful
carbon dioxide, nitrogen and water.
4.
Petrol combustion in automobiles releases CFCs.
5. Water should be boiled for 2-3 minutes for purifying it.​

Answer 1

Answer:

True

False

True

False

True

Answer 2

Answer:

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