Question

Stratosphere extends upto height of ______km
1. 50
2. 80
3. 30
4. 20

Answer 1

Correct Answer - Option 1 : 50

The correct answer is 50.

•  Stratosphere:
  • ​It extends from the top of the troposphere to about 50 km above sea level.
  • The ozone layer is found within the stratosphere.
  • The temperature decreases as we go higher in the Stratosphere layer. It increases to 4ºC.​

• Explanation of different layers of the atmosphere is listed below:

Layers of atmosphere	Description
Troposphere	It is the lowest layer of the atmosphere. It extends up to 10 km above sea level. All-weather occurs in this lowest layer. Temperature is about -58ºC.
Mesosphere	It extends above the height of 85 km above our planet. Meteors burn up in the mesosphere. The coldest temperature is found on this layer.  The Temperature is about -90ºC.
Thermosphere	It extends to a height of 640 km High X-Rays and UV radiation from the Sun are absorbed in the thermosphere. The temperature is about 1480ºC.
Exosphere	It extends to a height of 960 km beyond the Thermosphere. The temperature ranges from about 300ºC to 1650ºC. It contains only the traces of gases like oxygen, nitrogen, argon, and helium.