The atmospheric air is held to the Earth by?

Related Mcqs:

1. _________ is the atmospheric layer that absorbs most of the ultraviolet radiation that Earth receives from the Sun.

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

   Submitted by: Muhammad Abdullah

2. Stratosphere is the atmospheric layer that absorbs most of __________ that Earth receives from the Sun.

   A. Infrared radiation
   B. Ultraviolet radiation
   C. Ozone layer
   D. Radio waves

   Submitted by: Muhammad Abdullah

3. Atmospheric pressure decrease rapidly with altitude because the air becomes_______ ?

   A. Colder
   B. Less denser
   C. Rich in Ozone
   D. Warmer

   Submitted by: Mansoor Ahmed Suhag

4. The bodyguard of the Earth is __________ that save the Earth from many Comets and Asteroids.

   A. Mars
   B. Saturn
   C. Uranus
   D. Jupiter

5. 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

6. The instrument which i specially design for recording earth quake wave is called seismograph which measure earth quake waves on a ____________?

   A. Diatonic scale
   B. Fahrenheit Scale
   C. Richter scale
   D. Celsius Scale
   E. None of these

7. 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

8. Quantity of fresh air required for a man is 1000 cubic feet of air for every____________?

   A. 5 minutes
   B. 10 minutes
   C. 15 minutes
   D. 20 minutes

   Submitted by: WIQAR AHMAD

9. During which process of energy exchange does cold air displace warmer air?

   A. Convection 
   B.  Radiation
   C.  Conduction
   D.  None of these

   Submitted by: Rida

10. Brass gets discoloured in air because of the presence of which of the following gases in air ________ ?

    A. Carbon dioxide
    B. Oxygen
    C. Nitrogen
    D. Hydrogen sulphide

    Submitted by: Rashid Mehmood