SandwichVoidBerries SandwichVoidBerries 16-12-2020 Physics contestada HEELLLLLPPPPPPPPPPPP MEEEEEEEEEE!!!!!!!!!!!! Which statement best describes the thermosphere? The thermosphere sits directly below the troposphere. Lighter gases such as nitrogen and oxygen rise to the top of the thermosphere. Heavier gases such as hydrogen and helium stay at the bottom of the thermosphere. The atmosphere is so thin that gas molecules rarely contact each other.