Conversation so far:
where do most of earth's weather events take place
The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place.
how much of the total atmosphere's mass does the troposphere contain
The troposphere contains 75% of the atmosphere's mass and 99% of the total mass of water vapour and aerosols.
what is the height of the troposphere
The total average height of the troposphere is 13 km.
what is the origin of the name of the troposphere
The word troposphere is derived from the Greek tropos meaning turn, turn toward, change and sphere (as in the Earth), due to rotational turbulent mixing in the layer.

Question: which layer is above
Self-contained rewrite: which layer is above the troposphere