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Which were the organisms who changed ear...

Which were the organisms who changed earth's surface from reducing to the oxidizing

A

Autotrophs

B

Heterotrophs

C

Photoautotrophs

D

Chemotrophs

Text Solution

Verified by Experts

The correct Answer is:
D
These are non photosynthetic autotrophs i.e. photosynthetic pigments are absent. They use chemical energy instead of light energy for food synthesis. Chemical energy is obtained from oxidation of organic / inorganic compound.
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