Give examples to show that friction is both friend and foe ?​

Explanation:

Friction as a friend:

1.)It help us to walk

2.)It helps us to hold things.

3.)Stop a moving object.

Friction as a foe:

1.)Opposes motion.

2.)Friction produces a lot of heat, resulting in wastage of energy.

3.)Wear & tear of machinery parts.

I hope it's helpful!

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.

the answer to your question is c