What is a cocoon? Of what is it formed?

Important Questions on Fibres from Animals

EASY

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 4 - Fibres from Animals>Exercises>Q A

What do you mean by the throwing of silk?

EASY

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 4 - Fibres from Animals>Exercises>Q A

What is sheep shearing? How many times is a sheep generally shorn in India?

EASY

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 4 - Fibres from Animals>Exercises>Q A

Which is the best season for the mating of sheep?

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 4 - Fibres from Animals>Exercises>Q A

What are washed wool, clipped wool and pulled wool?

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 4 - Fibres from Animals>Exercises>Q B

Discuss moulting in silkworms.

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 4 - Fibres from Animals>Exercises>Q B

What are raw silk and spun silk?

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 4 - Fibres from Animals>Exercises>Q B

Why is the crossbreeding of sheep necessary in India? Name three exotic breeds with which crossbreeding is done in our country.

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 4 - Fibres from Animals>Exercises>Q C

Discuss the chemical properties of wool.