17. Pollution of Air and Water

Click the correct answer (True or False).

A greenhouse gas traps heat of the sun and do not allow it to escape into the space.

True

False

Click each box on the left and then click the matching box on the right.

Match the Columns

Chlorofluorocarbons

Reverse osmosis

Ultraviolet radiation

Sedimentation

Potable water

Depletion of ozone layer

Filtration through membrane under pressure

Disinfection of water

Settling of suspended matter at the bottom

Water safe for drinking

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