The compound is formed when cigarette is lit is …..
a) Nicotine
b) Benzene
c) CO
d) metals
The compound present in cigarette combine with red blood cells and prevent oxygen transportation is known as….
a) Nicotine
b) Benzene
c) N2
d) CO
………present in cigarettes causes cancer and respiratory skin and gastrointestinal problems
a) Formaldehyde
b) CO
c) NO2
d) CO2
Breathing of smoke laden air by nonsmokers is known as ……
a) active smoking
b) cancer
c) passive smoking
d) infection
Which of the following animal/s has/have large lungs as compared to others…..?
a) cheetah
b) elephant
c) human
d) both a and b
Under the resting condition the rate of breathing is……..times per minute.
a) 15-20
b) 20-30
c) 30-35
d) 15-30
