Question

Q6. Give answers in 30-40 words:
1. Define communicable diseases. Give some examples.
2. What role does sugar play in the preservation of food?
3. How are carriers harmful to us?
4. What is the role of bacteria in increasing the soil fertility?​

Answer 1

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Answer 2

Answer:

1 .the diseases that spread from one person to another buy contact of cough etc.

3. careers like insects mosquitoes dengue etc sits in the the dirty places and transferred harmful things in our food by sitting in our uncovered food.

4. the role of bacteria in increasing the soil fertility is very efficient.It helps the soil to increase its fertility.