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2015-02-18T17:22:42+08:00

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Mountain climbers bring thick jackets when they go up the mountain because in every 1000 m, there will be a drop of 6.5°c and at higher elevations, there will be less air. The air molecules are far to each other, which makes the air less dense. The lighter the air, the lower the temperature is. It is because light air can't absorb much heat.

--Mizu
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