Question

20 Write one word 2
a) force of friction due to air and water
) b) This donverts sliding friction to rolling friction.
2
21. Why does a fauner grow pea plants along with wheat crops?
22 Why do utensils have plastic handles? 2
23. When you rub:cur hands you experience heat being given out. Why? 2
24. A group of students were taken to a natior:al park. They were asked to stay cuiet Why were
the students asked to be quiet? 2.

Answer 1

Explanation:

22. Cooking utensils are made uo of copper and aluminium because they are good conductors of heat and hence food can be easily cooked in them. Their handles are made up of plastic because plastic is poor conductor of heat due to which the handles do not get heated and we are sble to hold the utensil with their help.

HOPE IT HELPS YOU.