CBSE (Central Board of Secondary Education) Class-6 Science: Questions 1 of 318

Question MCQ▾

Process of taking air into the lungs through nose and then expel it through nose is called as:

Choices

Choice (4)Response

a.

Breathing

b.

Respiration

c.

Question does not provide sufficient data or is vague

d.

None of the above

Edit

Answer

a.

Explanation

The process of taking air into the lungs through nose and then expels it through nose is called as breathing. When we breathe in; the air moves from outside to the inside of our body. In addition, when we breathe out then the air moves from inside our body to the outside. Air contains oxygen gas so the purpose of breathing in air is to provide oxygen to our body for carrying out respiration. Thus, breathing is a part of the process of respiration. Respiration is the chemical process in which food taken by an organism combines with oxygen to release energy.

The Respiratory System in Human

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