Question

Give reasons for the following.
1. Food kept in the open by hawkers should not be consumed.
2. Vacuum packing is commonly used to store nuts.
3. Stems of sugarcane show dull red colour along with White patches on stalks.
4. Common cold and conjunctivitis are communicable diseases.
5. Microorganisms can help in the production of fuel for energy.

Answer 1

Hope this answer will help you

Answer 2

Answer:

1. Most of street hawkers sells food items in an open area which always get contaminated with the dust and flies carrying germs with them. Such an unhygienic condition lead to spoilage of food which when consumed can lead to serious illness.