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प्रश्न
Fill in the blank
Polluted air is harmful to ____.
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उत्तर
Polluted air is harmful to health.
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संबंधित प्रश्न
What is meant by ozone depletion?
Tick (√) the correct alternative from the choice given for the following statement.
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Name the important scientists and their studies which led to the discovery of the components of air.
Draw a neat labelled diagram for the following experiment.
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