'Ozone layer is called protective layer'. Justify it.
How is it possible to maintain the constant thickness of ozone layer? Explain with reaction involved.
Distinguish between troposphere and stratosphere on the basis of thickness, composition and temperature range.
Name the layer of atmosphere which helps in communication. Write the reason too.
Which layer of the atmosphere is called fringe region? Write any two advantages of this region.
Which layer of the earth is called ionosphere and why?
In which layer does strong wind blow? How does the wind blow in winter and spring?
As we go up in the stratosphere, temperature goes on increasing why?
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