Which of the following constituents of pollutant exhaust in hazardous to man?

A. Carbon monoxide
B. Carbon dioxide
C. Lease particles
D. Carbon particles

Submitted by: Rashid Mehmood

Carbon monoxide is harmful when breathed because it displaces oxygen in the blood and deprives the heart, brain and other vital organs of oxygen. Large amounts of CO can overcome you in minutes without warning — causing you to lose consciousness and suffocate.

Related Mcqs:

Which pollutant from motor car exhaust causes mental disease _____?
A. Carbon dioxide
B. Lead
C. Sulpher Dioxide
D. Mercury

Submitted by: WIQAR AHMAD
The sun is expected to exhaust its hydrogen fuel in about 5 billion years. What will be its effect?
A. The sun will then expand into a red giant and possibly swallow the outer planets
B. The sun will then expand into a red giant and possibly swallow the inner as well as outer planets, including Earth
C. The sun will then expand into a red giant and possibly swallow the inner planets, including Earth
D. Sun will stay as it is

Submitted by: Muhammad Abdullah
Which of the following is the major constituents of LPG?
A. methane
B. ethane
C. hydrogen
D. butane

Submitted by: H@yii
The chief constituents of gobar gas is_________?
A. Methane
B. Oxygen
C. Hydrogen
D. Carbon monoxide

Submitted by: Saqlain hydar
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
What is the body temperature of a normal man?
A. 81.1 °C
B. 37.0 °C
C. 98.6 °C
D. 21.7 °C
The average heartbeat per minute in a normal man is _________?
A. 50
B. 70
C. 80
D. 100
Which of the followong spacecrsft enabled man to step on the moon first?
A. Spuntnik I
B. Luna II
C. Vostok I
D. Apollo XI

Submitted by: Jameel Ahmed Solangi (Larkana)
A man can survive without food for at least?
A. One month
B. Two month
C. Three month
D. Four month

Submitted by: Ashfaque Ali Khoso
A man presses more weight on earth at___?
A. Sitting position
B. Standing Position
C. Lying Position
D. None of these

Submitted by: Shuaib Uddin