The main cause of air pollution is __________?

Related Mcqs:

1. The main cause of floods in the river is__________?

   A. Heavy snowfall
   B. Earthquakes
   C. Deforestation
   D. Construction of dams

   Submitted by: Muhammad Tahir

2. Ultra Microscopic viruses are the main cause of__________?

   A. Malaria
   B. Measles
   C. Mumps
   D. Cholera

   Submitted by: Fareed Ahmed Kunbhar

3. Main constituent in air is ___________?

   A. Oxygen
   B. Nitrogen
   C. Hydrogen
   D. Helium

   Submitted by: Mirza Musawer Jamil

4. 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

5. 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

6. 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

7. If the level of atmospheric pollution increases:

   A. The length of the day will increases
   B. The length of the day will decreases
   C. The length of the day will remain same
   D. None of these

   Submitted by: Fahad Mehsud

8. Deficiency of vitamin C will cause:__________?

   A. Beri-Beri
   B. Architis
   C. Scurvy
   D. Night-blindness

   Submitted by: Nimra Shah

9. 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

10. Places where the temperature of air is below freezing point of the water, the precipitation will be in the form of __________ ?

    A. Snow
    B. Lightning
    C. Hailstorms
    D. Thunders

    Submitted by: Rashid Mehmood