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According to one of the most accepted th...

According to one of the most accepted theory the earth atmosphere before any life had originated consisted of `H_(2)O, H_(2), NH_(2)` and

A

`CH_(4)`

B

`O_(2)`

C

`N_(2)`

D

None of these

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The correct Answer is:
A
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  2. Select the wrong pair :

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  3. According to one of the most accepted theory the earth atmosphere befo...

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  4. The concept of chemical evolution is based on :

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  5. Belivers in spontaneous generation theory assumed that organisms:

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  6. The most primitive cell-like chemical aggregates capable of growth an...

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  7. Which one of the following incorrect about the characteristic of prot...

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  8. In the origin of life, microsphere are most primitive protobiont, whic...

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  9. The synthesis of complex molecules from simple molecules was proved by...

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  10. According to abiogenesis life originates from:

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  11. Which one does not confirm to the theory of "Biogenesis"?

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  12. Miller -Urey's experiment mixtue had the following except:

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  13. In the early earth, water and CO(2) were produced by the combination o...

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  14. The first fossil evidence of fossil dates back from :

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  15. According to available evidence, life evolved through the process of:

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  16. Who proposed that the first form of life could have come from pre-exis...

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  17. The important gas which was absent during the origin of life on Earth:

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  18. The prebiotic atomsphere of the Earth was of a reducing nature. It was...

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  19. Which gas was probably least abundant in the early atomsphere?

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  20. Choose the wrong statement.

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