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19. Characteristics of Mesosphere and Exosphere

Choose the correct statements [one or more statements may be correct choose all the correct statements]

1.

Radio waves transmitted from Earth are reflected back to Earth from mesosphere.
Mesosphere extends from Mesopause to 80 km above the Earth Surface.
Radio waves are absorbed by Mesosphere.
The mesosphere extends between 50km and 80km.

2.

The uppermost limit of the mesosphere is mesopause.
Most of the meteors nearing Earth's horizon get burned in the mesosphere.
The uppermost layer of the atmosphere is called the exosphere.

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