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Nutrition : Classes of Food — BIOLOGY STD 9 — Question

ICSE BoardEnglish MediumSTD 9BIOLOGYNutrition : Classes of Food2 Marks
Question
Why do we need food?
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Answer

A food is something that provides nutrients. Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.

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