Question

1. What is the basis on which the atmosphere is divided into five layers?
2. What is the composition of the atmosphere?
3. What is the significance of the ionosphere?​

Answer 1

Answer:

1:-(1) troposphere (2) stratosphere (3) mesosphere (4) thermosphere (5) exosphere.

2:-the earth atmosphere is composed of following molecules-nitrogen (78%), oxygen (21%),argon(1%) and the terrace amount of carbon dioxide neon helium methane krypoton hydrogen nitrous oxide xenon ozone iodine carbon monoxide and ammonia.

3:-the inosphere is the part of atmosphere that is ionized by solar radiation it plays an important part in atmospheric electric city 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.

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Answer 2

Explanation:

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