MEDIUM
8th CBSE
IMPORTANT
Earn 100

Describe the principle on which the following method of food preservation is based:

Canning

Important Questions on Microorganisms: Friend and Foe

MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 2 - Microorganisms: Friend and Foe>Exercise>Q 3

Describe the principle on which the following method of food preservation is based:

Freezing

MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 2 - Microorganisms: Friend and Foe>Exercise>Q 3

Describe the principle on which the following method of food preservation is based:

Dehydration

MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 2 - Microorganisms: Friend and Foe>Exercise>Q 4

What is vaccine?

MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 2 - Microorganisms: Friend and Foe>Exercise>Q 4
How does vaccine work?
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 2 - Microorganisms: Friend and Foe>Exercise>Q 4
Why are the children vaccinated?
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 2 - Microorganisms: Friend and Foe>Exercise>Q 1
Why does curd set faster in summers than in winters?
HARD
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 2 - Microorganisms: Friend and Foe>Exercise>Q 2
Why do we say that if a person suffers from chickenpox once, he/she is not likely to be attacked by the same disease in future?
HARD
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 2 - Microorganisms: Friend and Foe>Exercise>Q 3
Why should we always wash our hands before handling food item?