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Define water pollution....

Define water pollution.

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When toxic and unwanted substances enter, dissolve or remain suspended in the water bodies deteriorating the quality of water and affecting the aquatic ecosystem, then it is known as water pollution.
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NAVNEET PUBLICATION-POLLUTION-QUESTION BANK
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  9. There is an ozone hole in the Ozone layer. What do you understand by t...

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  10. Answer the following : What is pollution ?

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  11. Answer the following : What are Pollutants ?

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  12. Answer the following : Which are visible pollutants known to you ?

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  13. Answer the following : Which are invisible pollutants ?

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  14. What is greenhouse effect?

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  15. How do you corelate greenhouse effect and global warming?

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