1. Which layer of the atmosphere acts as a blanket ?

Ans. Troposphere.

2. In which layer of the atmosphere all the weather-changes take place ?

Ans. Troposphere.

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3. Which layer of the atmosphere has the maximum concentration of the ozone gas ?

Ans. Ozonosphere, it is a part of stratosphere.

4. Which rays in the atmosphere coming from the sun are absorbed by Ozone ?

Ans. Ultraviolet rays.

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5. Which layer of the atmosphere contains ideal flying conditions for jet air-crafts ?

Ans. Stratosphere.

6. In which layer of the atmosphere there is a great decrease of temperature ?

Ans. Mesosphere.