Everyday ScienceGaseous Exchange
The respiratory disorder in which lungs are affected is called
emphysema
bronchitis
pneumonia
asthma
pneumonia
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Vitamin C is soluble inA. fat
B. water
C. ethers
D. phenols
The disorder in which, bronchi are inflamed and more mucus production occurs is
A. emphysema
B. asthma
C. pneumonia
D. bronchitis
The epiglottis, a flap of tissues covers the
A. pharynx
B. nostrils
C. nasal cavity
D. glottis
The density of air in the atmosphere is
A. uniform
B. not uniform
C. zero
D. none of above
The amount of carbon dioxide (CO2) present in the inspired air is
A. 0.0006
B. 0.0004
C. 0.04
D. 0.06
In the body, the weight of blood is about
A. 1/12th of body
B. 1/5th of body
C. 1/8th of body
D. 1/4th of body
Which substance is present in fuel?
A. Iron
B. Gold
C. Carbon
D. Copper
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