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Q.

The temperature in the exosphere may rise up to ____degrees Celsius.


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Detailed Solution

Concept: Temperatures in the exosphere can get as high as 1700 degrees Celsius. The temperature rises with height in certain strata while declining in others. The heat source in each layer affects the gradient of temperatures in that layer. The thermal structure of the atmosphere is produced by temperature variations between the four main layers.
The temperature rises throughout the day and drops at night. The exosphere's air, which is mostly composed of helium and hydrogen, is very thin. Due to its isolation, the exosphere's temperature can increase to 1600 degrees Celsius.
Hence, the correct answer is 1700 degrees Celsius.
 
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