Answer:
As altitude increases, the amount of gas molecules in the air decreases—the air becomes less dense than air nearer to sea level. This is what meteorologists and mountaineers mean by "thin air." Thin air exerts less pressure than air at a lower altitude
Fusion,melting,vaporization,submlimination are examples of endothermic changes
Answer:
The answer for this question is B water vapor
Explanation:
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Idk no idea none zero sorry hope someone know more than me
