The process through which organisms get oxygen for their cells from their surrounding environment is classified as

gaseous exchange
respiratory exchange
cellular respiration
breathing
respiratory exchange  

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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 amount of carbon dioxide (CO2) present in the inspired air is
A. 0.0006
B. 0.0004
C. 0.04
D. 0.06
A human breath per minute is
A. 16-30 times
B. 16-20 times
C. 15-20 times
D. 15-18 times
The respiratory disorder in which cells division takes place without any control and causes tumors is called
A. emphysema
B. lung cancer
C. bronchi cancer
D. bronchioles cancer
The percentage of respiratory disorders is high in Pakistan due to more concentration of air
A. chemicals
B. components
C. gases
D. pollution
How many types of bronchitis are?
A. 1
B. 2
C. 3
D. 4

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