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CBSE Notes 2011-2012 » VIII-Science

Pollution of Air and Water

To remove the suspended impurities from water at home the substance used is

Multiple choice question

To remove the suspended impurities from water at home the substance used is

Ozone layer in the atmosphere depleted by

Multiple choice question

Ozone layer in the atmosphere depleted by

The gas responsible for global warming is

Multiple choice question

The gas responsible for global warming is

The pollutants in water can be recognised by

Multiple choice question

The pollutants in water can be recognised by

Select the water-borne disease out of the following

Multiple choice question

Select the water-borne disease out of the following

Water pollution is not caused by

Multiple choice question

Water pollution is not caused by

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