Every Day Science Section-4 Multiple Questions and Answers.




26.Water is universal solvent for what reactions:
A. Physical
B. Chemical
C. Biochemical
D. Proteins

27.The volume percentage of nitrogen in air is:
A. 60%
B. 67%
C. 78%
D. 88%

28.Air contains volume of carbon dioxide approximately:
A. 3%
B. 33%
C. 44%
D. 0.03%

29.Which of the following is involved in blood clotting,
A. Sodium
B. Magnesium
C. Calcium
D. Oxygen

30.For water purification, we use:
A. Chlorine
B. Bromine
C. Fluorine
D. Calcium

«»



Date to Date Current Affairs 2022

PakMCQs.net

Quick Links

GAT Subject



   Computer Science    English Mcqs    Agriculture    

Engineering



   Computer Science    Civil Engineering    

Technical



   Networking    Electronics    Database    

Past Papers



   Model Papers    FPSC Papers