Which layer of the atmosphere lies close to the earth?

Related Mcqs:

1. Second layer of Earth’s atmosphere is__________?

   A. Stratosphere
   B. Mesosphere
   C. Troposphere
   D. Thermosphere

   Submitted by: Rehana Mallah

2. 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

3. About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is?

   A. Oxygen
   B. Cabon Dioxide
   C. Silicon
   D. Clay

4. The lowest region of the earth’s atmosphere comes between the earth and stratosphere. what is this region’s name?

   A. Ionosphere
   B. Troposphere 
   C. Stratosphere
   D. Mesosphere

   Submitted by: Ashfaque Ali Khoso

5. Ozone layer prevents ______________ radiation from entering the atmosphere?

   A. Infra-red
   B. Ultraviolet
   C. X-rays
   D. Gamma rays
   E. None of these

6. what is the height of The atmosphere layer mesosphere?

   A. 85 km
   B. 50 km
   C. 40 km
   D. 10 km

   Submitted by: Rehana Mallah

7. In which layer of atmosphere does commercial aircrafts usually fly?

   A. Stratosphere
   B. Troposphere
   C. Mesosphere
   D. Thermosphere

   Submitted by: Kashif Ashraf

8. __________ is the lowest layer of the atmosphere.

   A. Stratosphere
   B. Mesosphere
   C. Troposphere
   D. Thermosphere

   Submitted by: Muhammad Abdullah

9. 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

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

    A. microwaves
    B. infrared
    C. X-rays
    D. ultraviolet

    Submitted by: Aamir Hussain Laghari