Respiration: Short Answer

P5 Science · Topic 8: Air and the Human Respiratory System · 55 questions · difficulty D1–D3 · Singapore syllabus-aligned

Sample questions

SAMPLE 1

Nitrogen is not used up in respiration, so its percentage in exhaled air is the ___ as in inhaled air.

SAMPLE 2

The amount of water vapour in the air decides its ___.

SAMPLE 3

Air that is breathed in through the nose is cleaned by the ___ in the nostrils.

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