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A. 700°C
B. 1300°C
C. 900°C
D. 1700°C
Answer
Answer
B. 1300°C
Submitted by: Toheed Ahmed
In blood, the percentage of water is ________?
A. 75%
B. 85%
C. 90%
D. 95%
Answer
Answer
C. 90%
Submitted by: Toheed Ahmed
As the temperature of ice rises, the ice melts and its density
A. Remains constant
B. Decreases
C. Increases
D. Increases upto 10 °C
Answer
Answer
C. Increases
Submitted by: Toheed Ahmed
Water is a universal solvent for what reactions.
A. Biochemical
B. Physical
C. Chemical
D. Nuclear
Answer
Answer
A. Biochemical
Submitted by: Toheed Ahmed
The volume percentage of nitrogen in air is _________?
A. 60%
B. 67%
C. 74%
D. 78%
Answer
Answer
D. 78%
Submitted by: Toheed Ahmed
Nitrogen occur in plants and animals in the form of __________?
A. Proteins
B. Fats
C. Carbohydrastes
D. Minerals
Answer
Answer
A. Proteins
Submitted by: Toheed Ahmed
Air contains volume of carbon dioxide approximately;
A. 3%
B. 33%
C. 0.3%
D. 0.03%
Answer
Answer
D. 0.03%
Submitted by: Toheed Ahmed
The gases which are used by divers as an artificial atmosphere are helium and;
A. Carbon monoxide
B. Neon
C. Oxygen
D. Nitrogen
Answer
Answer
C. Oxygen
Submitted by: Toheed Ahmed
The second most abundant metal found in the earth’s crust is.
A. Iron
B. Sodium
C. Aluminium
D. Calcium
Answer
Answer
A. Iron
Submitted by: Toheed Ahmed
Which of the following is involved in blood clotting.
A. Magnecium
B. Calcium
C. Sodium
D. Potassium
Answer
Answer
B. Calcium
Submitted by: Toheed Ahmed