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Question

The process of taking in air from the atmosphere is known as _____________.

A
exhalation
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B
inhalation
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C
breathing
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D
respiration
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Solution

The correct option is B inhalation
  • Inhalation/inspiration is the process of taking in of air through nose and passing it towards the lungs through the trachea (wind pipe).
  • Exhalation/expiration is the process by which, the air is expelled from the body back into the atmosphere.
  • Breathing is a physical process that involves both inhalation and exhalation.
  • Respiration is a chemical process which involves breakdown of glucose into water vapour and carbon dioxide in the presence of oxygen and energy is released in the form of ATP.

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