|The atmosphere is a mixture of several gases. Near the earth’s surface contains mainly –
|Nitrogen and oxygen
|Which gas has a maximum percentage in the atmosphere?
|In the vertical structure of the atmosphere, which one is the lowest layer?
|Most weather activity occurs in which the atmospheric layer –
|The stratosphere is said to be ideal for flying jet aircraft. This is because –
|The absence of clouds and other weather phenomena
|The ozone layer lies in the –
|Which protects life on Earth from the harmful radiations of the Sun?
|The function of the ozone layer in the stratosphere is –
|To prevent ultraviolet radiation effect on the ground
|The ozone layer refers to –
The layer of atmosphere of 15-20 km. above the surface of the Earth
|The height of the ozone layer above the surface of the earth is –
|Which layers of the atmosphere are responsible for the deflection of radio waves?
|Wireless communication is reflected to the earth’s surface by –
|Which layer of Atmosphere is used for Telecommunication?
|In which atmospheric layer are communication satellites located?