Question

The atmosphere of the primitive earth was reducing.

• A. True
• B. False

Answer 1

The correct option is A True

Primitive Earth:

1. The primitive Earth had a reduced atmosphere because of the absence of free oxygen.
2. Free oxygen evolved for the first time when blue-green alga came into existence and later on green plants were added to it.
3. When green plants carry out photosynthesis, they evolve oxygen as an essential by-product that makes the atmosphere oxidize.
4. This reducing atmosphere leads to a higher evolution rate during that time.

Final answer: The given statement is true.