The ozone layer is at height of________kilometers from the surface of the Earth?

Related Mcqs:

1. One of the main function of the earth’s ozone layer is to ?

   A. Prevent global warming B. Filter out ultraviolet rays C. Absorb pollution D. All of the above...

2. Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere?

   A. Carbon dioxide B. Chlorofluorocarbons C. Nitrogen oxides D. Methane...

3. Ozone layer protects the Earth from __________ radiations from the Sun.

   A. microwaves B. infrared C. X-rays D. ultraviolet Submitted by: Aamir Hussain Laghari...

4. Which layer of the atmosphere reflects radio waves back to the earth’s surface?

   A. Troposphere B. Stratosphere C. Ozone layer D. Ionosphere Submitted by: Aamir Hussain Laghari...

5. Ozone layer thickness is measured in____________?

   A. Metre B. Joule C. Pounds D. Dobson Submitted by: Muhammad Husnain Naseer...

6. There is a hole in the Ozone Layer at__________?

   A. South Pole B. North Pole C. Both A and B D. None of These Submitted by: Munwar Ali Sohu...

7. Composition of Ozone layer?

   A. O1 B. O2 C. O3 D. O4 Submitted by: Hasnain Ali...

8. Which is the New & Most Important Culprit damaging the ozone Layer?

   A. Carbon Dioxide B. Chlorofluoro Carbons C. Nitrous Oxide  D. Carbon Monoxide Submitted by: Shahbaz Jiskani...

9. __________ contains the ozone layer.

   A. Troposphere B. Stratosphere C. Mesosphere D. Ionosphere Submitted by: Muhammad Abdullah...

10. _________ contains ozone layer.

    A. Thermosphere B. Exosphere  C. Lithosphere D. Stratosphere Submitted by: Muhammad Abdullah...