Why does the upper atmosphere have less gases, dust particles, etc. ?
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The uppermost layer of the atmosphere is called the exosphere. It is beyond 40 km above the Earth's surface. The gravitational pull is comparatively low in this part of the atmosphere and hence the gases are very sparse in this sphere.
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Explanation:The uppermost layer of the atmosphere is called the exosphere. It is beyond 40 km above the Earth's surface. The gravitational pull is comparatively low in this part of the atmosphere and hence the gases are very sparse in this sphere.
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