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These form integral part of basic organi...

These form integral part of basic organic compounds of life.

A

Nitrogen, hydrogen

B

Hydrogen, phosphorous

C

Hydrogen, oxygen

D

Nitrogen, oxygen

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VGS PUBLICATION-BRILLIANT-BIO GEOCHEMICAL CYCLES-EXERCISE
  1. The percentage of salt water on earth is

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  2. The human body is composed of about how much water?

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  3. These form integral part of basic organic compounds of life.

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  4. The element that is abundantly present in atmosphere is

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  5. The free living bacteria that fixes nitrogen is

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  6. Nitrogen makes its way back into the atmosphere through a process call...

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  7. The excessive amount of nitrates and other nitrogenous compounds when ...

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  8. It is reponsible for maintaining the earth as green-house with tempera...

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  9. The main reservoirs of carbon are -

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  10. Excessive amount of carbon dioxide and other green house gases has bee...

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  11. These are poisoned by elemental oxygen

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  12. Decomposition of organic waste requires

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  13. The layer extends from the earth’s surface up to about 10 kilometers i...

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  14. The number of oxygen atoms present in a molecule of ozone is-

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  15. Ozone layer absorbs these radiations of sun

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  16. These are responsible for destruction of ozone layer

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  17. To protect ozone layer, the protocol emerged was

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  18. The element present in diamond is

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  19. Which of the following organisms is a free living nitrogen fixer?

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  20. Which of the following is the elemental form of carbon?

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