1) what gas is the most abundant in the atmosphere a) Oxygen b) water vapor c) Nitrogen 2) where does air move a) from high pressure to low b) from low pressure to high c) from hot to cold 3) how many layers are the atmosphere a) 1 b) 5 c) 6 4) what layer of the atmosphere is the furthest from the earth a) exosphere b) stratosphere c) atmosphere 5) what layer of the atmosphere do we live in a) troposphere  b) mesosphere  c) liveinsphere

atmosphere

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