Amarnath Mishra, Geeta Mehta, Deepti Lehri and, Rajesh Mohan Solutions for Chapter: Fibres from Animals, Exercise 1: Exercises
Amarnath Mishra Science Solutions for Exercise - Amarnath Mishra, Geeta Mehta, Deepti Lehri and, Rajesh Mohan Solutions for Chapter: Fibres from Animals, Exercise 1: Exercises
Attempt the free practice questions on Chapter 4: Fibres from Animals, Exercise 1: Exercises with hints and solutions to strengthen your understanding. Basic Science For Class 7 solutions are prepared by Experienced Embibe Experts.
Questions from Amarnath Mishra, Geeta Mehta, Deepti Lehri and, Rajesh Mohan Solutions for Chapter: Fibres from Animals, Exercise 1: Exercises with Hints & Solutions
Why is the crossbreeding of sheep necessary in India? Name three exotic breeds with which crossbreeding is done in our country.
Discuss the chemical properties of wool.
The whole process of obtaining silk starting from the silk moth is called _____.
The sleeping period of a silkworm is _____ hours. (12, 24, 30)
The quality and quantity of wool depend upon the _____ of the sheep. (size/shape/breed)
The thinner the fibre, the _____ is the wool. (poor / better )
Wool has a _____ tensile strength. (low/high)
Match the columns A and B
| A | B | ||
|---|---|---|---|
| a | Mulberry | (i) | To remove burrs from fleece |
| b | Organzine | (ii) | To soak silk in solutions of salts |
| c | Tram | (iii) | The best feed for silkworms |
| d | Combing | (iv) | The lengthwise thread in silk weaving |
| e | Weighting | (v) | The crosswise thread in silk weaving |
