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Oxygen in atmosphere has been formed by:...

Oxygen in atmosphere has been formed by:

A

Evaporation of water

B

Photosynthesis of blue green algae

C

Metabolism of microorganisms

D

Decaying organisms

Text Solution

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The correct Answer is:
B
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MOTION-EVOLUTION-Exercise - 1
  1. Pesteur succceeded in disprowinv the theory of spontaneous generation ...

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  2. Now the basis of origin of life is :

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  3. Oxygen in atmosphere has been formed by:

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  4. Primitive atmoshpere was reducing because:

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  5. Who called larger colloidal particles of primitives sea as coacervates...

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  6. Who called water of primitive sea as per biotic soup :

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  7. Oparin's theory is based of

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  8. Which biologist gave most logical biochemical theory of origin of life...

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  9. During the course of origin of life what was the sequence of substance...

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  10. Type of nutrition in the primitive cells Or It is believed that th...

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  11. Which compound had a very important role in prebiotic evolution?

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  12. Under certain condition scientist have obtained cell-like structures. ...

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  13. Who did an experiment to prove that '' The organic compounds were ther...

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  14. Due to discovery of which of the following in 1980, the evolution was...

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  15. What is true for Archaebacteria

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  16. 1st life on earth was

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  17. There is no life on moon due to the absence of :

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  18. During chemical evolution, key biological compounds were synthesised

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  19. Big bang theory was proposed by

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  20. Millaer and Urey performed an experiment to prove the origin of life. ...

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