What prevents the earth’s atmosphere from drifting away into space?

Related Mcqs:

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

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

2. Border line which separates outer space from Earth’s atmosphere is known as___________?

   A. Durand line
   B. Space line
   C. Venus line
   D. Karman line

   Submitted by: Rehana

3. The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it?

   A. 10%
   B. 20%
   C. 30%
   D. 50%

   Submitted by: Jameel Ahmed Solangi (Larkana)

4. The Chandrayaan-3 mission by the Indian Space Research Organisation (ISRO) was successfully lifted off from which Space Centre?

   A. Paresh Dhawan Space Centre
   B. Satish Dhawan Space Centre
   C. Ram Dhawan Space Centre
   D. Shiri Dhawan Space Centre

   Submitted by: Muhammad Abdullah

5. Acid rain is mainly caused by emissions of __________ in the atmosphere?

   A. Sulfur Dioxide and Potassium Nitrate
   B. Sulfur and Charcoal
   C. Nitrogen Oxide and Potassium Nitrate
   D. Sulfur Dioxide and Nitrogen Oxide

6. The sky appears blue because the earth’s atmosphere __________?

   A. Scatters blue light
   B. Reflects blue light
   C. Transmits blue light
   D. Has actual blue cover

7. The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________?

   A. Conduction of heat upward from a hot surface
   B. Convection from a hot surface
   C. Absorption of infrared energy that has been radiated from the surface
   D. Heat energy from the earth’s interior

   Submitted by: Mansoor Ul Haque

8. The process by which air flows from one location in the atmosphere to another is called __________?

   A. Convection 
   B. Radiation
   C. Conduction
   D. Electromagnetic Induction

   Submitted by: Rida

9. The unit to measure the quantity of Ozone in atmosphere is ?

   A. Dobson
   B. Cloning
   C. Dalton
   D. Colomb

   Submitted by: Mansoor Ahmed Suhag

10. ____________ contains 75–80 % of the mass of the atmosphere.

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

    Submitted by: Muhammad Abdullah