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What is BOD? Write one harmful effect of...

What is BOD? Write one harmful effect of it.

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CHHAYA PUBLICATION-ENVIRONMENTAL CHEMISTRY-SOLVED WBCHSE SCANNER
  1. Indicate the correct answer: Among the following gases is a greenhous...

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  2. Fill in the blank: The causes ofMinamata is containing effluent. In...

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  3. How is agricultural land polluted?

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  4. How does ozone layer prevent the incidence of harmful UV-radiation on ...

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  5. How can global warming be controlled?

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  6. Name two components of photochemical smog and mention one of the harmf...

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  7. What are the major components of acid rain?

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  8. How is soil polluted by excess use of ammonium sulphate?

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  9. Name one organic and one inorganic greenhouse gases. How do they effec...

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  10. Acid rain is a dilute aqueous solution of which of the following pairs...

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  11. Write one effect of depletion of ozone layer and one measure for the p...

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  12. Which of the following matallic air pollutants is present in the gas e...

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  13. Which of the following is not a Greenhouse gas----

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  14. What is BOD? Write one harmful effect of it.

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  15. Which compound is responsible for hole formation in stratosphere of oz...

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  16. Write short notes on Eutrophication.

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  17. Which of the following gases emitted by motor vehicles is responsible ...

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  18. Mention two causes of soil pollution.

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  19. How does the increase in the amount of CO(2) in the atmosphere lead t...

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