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Earths atmosphere is made up of layers. The lowest ones (troposphere, stratosphere, mesosphere) have a relatively homogeneous composition but widely varying temperatures. In the thermosphere (80500 km altitude), the temperature rises considerably, since this layer absorbs considerable solar radiation. Above it is the exosphere, a zone where the few remaining molecules of air escape Earths gravity.

Earths atmosphere is made up of layers. The lowest ones (troposphere, stratosphere, mesosphere) have a relatively homogeneous composition but widely varying temperatures. In the thermosphere (80500 km altitude), the temperature rises considerably, since this layer absorbs considerable solar radiation. Above it is the exosphere, a zone where the few remaining molecules of air escape Earths gravity.
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Earths atmosphere is made up of layers. The lowest ones (troposphere, stratosphere, mesosphere) have a relatively homogeneous composition but widely varying temperatures. In the thermosphere (80500 km altitude), the temperature rises considerably, since this layer absorbs considerable solar radiation. Above it is the exosphere, a zone where the few remaining molecules of air escape Earths gravity.
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Album / Universal Images Group
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Taille de l'image:
4918 x 3265 px | 45.9 MB
Taille d'impression:
41.6 x 27.6 cm | 16.4 x 10.9 in (300 dpi)
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