Fine organic or inorganic particles suspended in air is called _______________?

Related Mcqs:

1. When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?

   A. Visible
   B. Transparent
   C. Invisible
   D. opaque
   E. None of these

2. The moon’s surface is also covered with a layer of fine dust called?

   A. Gegolith
   B. Megolith
   C. Regolith
   D. None of the above

   Submitted by: Muhammad Abdullah

3. The subatomic particles arriving from outer space having high energy are called?

   A. Protons
   B. Electrons
   C. Cosmic rays
   D. None of the above

   Submitted by: Malik Asghar Hussain

4. The study of rearing fine and intelligent human beings through genetics is called__________?

   A. Eugenics
   B. Biotechnology
   C. Cloning
   D. Geneology

   Submitted by: SHAFQAT ALI SIYAL

5. 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

6. 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

7. 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

8. The Beta particles are fast moving___________?

   A. Protons
   B. Electrons
   C. Neutrons
   D. None

9. _____________ are positively (+) charged particles?

   A. Neutrons
   B. Electrons
   C. Protons
   D. None of These

10. Who said that light is made of corpuscles/particles?

    A. Maxwell
    B. Einstein
    B. Newton
    D. Huygein

    Submitted by: Munwar Ali Sohu