What are the main functions of food, examples of energy-giving and growth-promoting foods, how flour is made, why uncovered food is bad, and how sugar is made?

Here are the answers to your questions:

1. Food provides us with energy, helps us grow, and protects us from diseases.

2. Two things that give us energy are rice and wheat. Two things that help us grow are milk and eggs.

3. Flour mills grind grains like wheat to produce flour.

4. We should not eat uncovered food because it can get contaminated by dust, germs, and insects, which can make us sick.

5. Sugar is made from sugarcane juice by crushing the sugarcane to extract the juice, then boiling and purifying the juice to crystallize the sugar.