Humidity and Ozone

Q.

The main function of ozone layer in the atmosphere is to:

1. shield Earth from UV rays from Sun

2. shield the Sun from cosmic rays

3. allow UV rays to reach Earth at a faster rate

4. increase the IR radiations reaching the surface of Earth

Q. Three atoms of oxygen element come together to form ______.

1. tetraoxygen
2. monoxide
3. oxygen gas
4. trioxygen

Q. How did CFCs result in the depletion of the Ozone layer?

1. They prevented the formation of new Ozone atoms.
2. They helped the formation of new Ozone atoms.
3. They prevented the formation of new Chlorine atoms.
4. They prevented the formation of new Oxygen atoms.

Q. How are the ozone depleted zones referred to?

1. Ozone layers
2. Ozone traps
3. Ozone holes
4. Ozone doors

Q. What was identified as the causative agent for the depletion of Ozone layer?

1. Emission of carbon
2. Emission of chlorine
3. Emission of chlorofluorocarbon
4. Emission of oxygen

Q. Write a short note on ozone and ozone layer.

Q. Two atoms of oxygen element come together to form _____.

1. oxygen gas
2. ozone
3. tetraoxygen
4. monoxide