Which of the following was absent in the free | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The primitive atmosphere of the Earth was reducing in nature. It contained gases like $CH_4$ (Methane),$NH_3$ (Ammonia),$H_2$ (Hydrogen),and water

Vedclass · Accepted Answer

Oxygen

Vedclass · Answer

(D) The primitive atmosphere of the Earth was reducing in nature. It contained gases like $CH_4$ (Methane),$NH_3$ (Ammonia),$H_2$ (Hydrogen),and water vapor. Free oxygen $(O_2)$ was absent in the primitive atmosphere because it was highly reactive and was consumed in the formation of water and oxides of other elements. Oxygen was released later into the atmosphere through the process of photosynthesis by cyanobacteria.

Which of the following was absent in the free form in the primitive atmosphere at the time of the origin of life?

Similar Questions

The first life on Earth originated in ........ .

How was free ${O_2}$ released into the Earth's atmosphere,given that there was no free ${O_2}$ at the time of the origin of life?

Give scientific reasons: Life originated from the Earth's inorganic atmosphere in the past,but this no longer happens today.

Define and explain the terms $Abiogenesis$ and $Biogenesis$.

What was absent in the atmosphere during the origin of life?

Vedclass Test Series

Exam Paper Generator

Online Exam Module