Question

In ----------------- layer of the atmosphere the gases are totally absent.
gases are totally absent​

Answer 1

Answer:

Explanation: the boundary between mesosphere and theromospher

Answer 2

Answer:

The exosphere is the outermost layer of the earth's atmosphere. It is approx. 10,000 kilometers thick and separates the earth's atmosphere from outer space.

Explanation:

The exosphere is the outermost layer of the earth's atmosphere. It is approx. 10,000 kilometers thick and separates the earth's atmosphere from outer space.

• It is almost as wide as the earth and contains gases like hydrogen and helium which are dispersed with a lot of empty space existing between them.

• There is so much space between the atoms and molecules of gases that they can travel hundreds of kilometers without colliding with each other. Therefore particles constantly escape into outer space depriving the exosphere of its behavior to act as a gaseous layer.