how does ionosphere helps in long distance communication ? answer in 100 words
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It plays an important part in atmospheric electricity and forms the inner edge of the magnetosphere.
It has practical importance because, among other functions, it influences radio propagation to distant places on the Earth.
The lowest part of the Earth's atmosphere is called the troposphere and it extends from the surface up to about 10 km (6 miles).
The atmosphere above 10 km is called the stratosphere, followed by the mesosphere.
It is in the stratosphere that incoming solar radiation creates the ozone layer.
At heights of above 80 km (50 miles), in the thermosphere, the atmosphere is so thin that free electrons can exist for short periods of time before they are captured by a nearby positive ion
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