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Chemistry Class 10 Chapter 14
Environmental Chemistry – The Atmosphere-4

Chemistry Class 10
1.    which one of the following in atmosphere is responsible for Protecting us from the ultra violet radiations of sun?




Chemistry Class 10
2.    the middle layer of the atmosphere is the?




Chemistry Class 10
3.    which layer protects the earth's surface from being hit by most meteoroids?




Chemistry Class 10
4.    the outermost layer of the atmosphere is the?




Chemistry Class 10
5.    thermo means?




Chemistry Class 10
6.    what is the hotest layer of the atmosphere?




Chemistry Class 10
7.    which layer is first striken by the sunlight?




Chemistry Class 10
8.    any thing that is harmful to the environment is known as?




Chemistry Class 10
9.    the aurora borealis occurs in the?




Chemistry Class 10
10.    which one of the following is a pollutant?




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