Question

Using chemical in food is harmful to our health. Explain why?h- Explain the ways of food preservation? enna What energy change takes place when you switched on a TV? Ch. How does recycling help to reduce air pollution?​

Answer 1

Answer:

Yes , using chemical in food is harmful to our health because the chemical is toxic and harm our body .

There are several ways of food preservation:-

1 . by deep freezing.

2. by adding salt or sugar

3. by boiling.

4. by sun drying

5. by paustring

Recycling help to reduce air pollution because if thing are not recycled then it will be burn and if these ar burn it release several toxic gases in air .