Consider the following statements 1 Stratosphere is almost free from clouds and its associated...........

Geography NCERT

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Consider the following statements

1.Stratosphere is almost free from clouds and its associated weather phenomenon.

2.Gases like Helium and hydrogen are present in the Mesosphere.

Choose the correct statements using the codes given below

1 only

2 only

Both 1 and 2

Neither 1 nor 2

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Explanation:

· Stratosphere lies above the troposphere it extends upto a height of 50km. This layer is almost free from clouds and associated weather phenomenon.
· Thermosphere extends between 80 -400km. This layer helps in radio transmission.
· Exosphere is upper most layer of the atmosphere. This has very thin air. Light gases like helium and hydrogen float into space from here.