Which gas was absent in the atmosphere of primitive earth ?

What was the nature of atmosphere in the primitive earth ?

How atmosphere covers the earth ?

What was the effect of oxygen on methane and ammonia found in the reducing atmosphere of primitive earth?

True/False Type Questions: The primtive atmosphere of primitive earth was reducing.

which gas present in the atmosphere is most important for human beings and animals?

Which was not present in primitive atmosphere?

According to oparin which of the following was not present in primitive atmosphere of earth

Root cap is absent in: