Air contains maximum amount of__________? - PakMcqs

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1. It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of__________?

   A. An equal and opposite pressure acts from inside B. of the height of a man C. of gravity D. Earth pulls the man upward E. None of these Submitted by: Zeeshan Rafique Soomro...

2. The cow’s milk contains how much amount of water in terms of percentage?

   A. 60% B. 65% C. 72% D. 80%...

3. The Cow’s Milk contains how much amount of water in terms of percentage?

   A. 60% B. 65% C. 72% D. 87% Submitted by: Afzal...

4. Air contains volume of carbon dioxide approximately?

   A. 3% B. 33% C. 0.3% D. 0.03% Submitted by: Ashfaque Ali Khoso...

5. Guava has the maximum amount of which Vitamin?

   A. vitamin K B. vitamin B C. vitamin C D. vitamin D Submitted by: Mansoor Ahmed Suhag...

6. 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...

7. 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...

8. 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...

9. The maximum risk to air travel is from?

   A. Clouds B. Rainfall C. Fogs D. Strong Winds Submitted by: Syed Nizakat Ali Shah...

10. Our atmosphere consists of__________ CO2?

    A. 0.03 to 0.04% CO2 B. 0.3 to 0.4% CO2 C. 3 to 4% CO2 D. None of these Submitted by: Ameer Ali Mirani...