Is an atmosphere with different layers possible?

I'm making a world where you live in the air, as the surface is not survivable (like Venus). I'm going to leave out the story of the planet, as it's not important.

Anyway, could there be a planet with different layers in its atmosphere? For example, the bottom layer, closer to the surface would be dense, heavy gas (or a mixture of gases), while higher up, there is a layer of lighter gas (or a mixture of gases), something like Earth's nitrogen and oxygen breathable atmosphere.

Is this even possible, and if so, what would the transition between the layers be like (smooth and gradual, sudden, etc.)?

Also, for a bonus question, what would the most likely gases in these layers be?

is a duplicate

This question has been asked before and has already been answered. It should be marked as a duplicate.

Please enter the URL of the proposed duplicate in the details field below.

not constructive

This question cannot be answered in a way that is helpful to anyone. It's not possible to learn something from possible answers, except for the solution for the specific problem of the asker.

Communities

Is an atmosphere with different layers possible?

0 comment threads

0 answers