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One of the possible early sources of ene...

One of the possible early sources of energy was/were

A

`CO_(2)`

B

chlorophyll

C

green plants

D

UV rays and lightning.

Text Solution

Verified by Experts

The correct Answer is:
D
The energy requiring synthetic processes, that occurred on primitive earth obtained energy from the sun, violent electric discharges like lightning, heat produced from volcanic eruptions and ionizing radiations like X-rays, etc.
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NCERT FINGERTIPS-EVOLUTION-Evolution
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  3. Which experiment suggests that simplest living organism could not have...

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  7. According to one of the most widely accepted theories, earth's atmosph...

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  9. In the experiment in given diagram which of the following groups of ga...

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  10. The diagram given here is the representation of

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  11. From the point of view of early chemical evolution that preceded the o...

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  12. The correct sequence for the manufacture of the compounds on the primi...

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  13. The prebiotic atmosphere of the earth was of a reducing nature. It was...

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  14. The first non-cellular form of life could have originated billion yea...

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  16. On the primitive earth, polymers such as proteins and nucleic acids in...

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  17. Coacervates are

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  18. Consider following statement regarding microspheres. (i) They were ...

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