Shalu had a common cold. The doctor advised her to drink a lot of fluids and take rest. He did not prescribe any antibiotics. Why did he not do so?

Important Questions on Microorganisms

MEDIUM

8th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 2 - Microorganisms>EXERCISE>Q 2

Priya prepared orange marmalade at home. Which preservative would you recommend Priya to use to preserve this item - salt, sugar, vinegar or oil? Give reason.

MEDIUM

8th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 2 - Microorganisms>EXERCISE>Q 3

Rahul had malaria. His friend Manu went to meet him and shook hands with him. Do you think he did right?

HARD

8th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 2 - Microorganisms>EXERCISE>Q 4

Ruchi was making bread at home. She took some cold water and added yeast into it. She was surprised to see that the yeast was not activated. Where did she go wrong?

MEDIUM

8th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 2 - Microorganisms>EXERCISE>Q 5

Many herbivores have cellulose-digesting bacteria in their stomach. Are these bacteria friends or foe for the herbivore?

MEDIUM

8th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 2 - Microorganisms>EXERCISE>Q 1

What would happen if the vaccination begins after a few years of the birth of the child instead of immediately after birth?

MEDIUM

8th CBSE