Question

2 difference between internal.and external forces

Answer 1

internal force is the force is applied by inside is called internal force and external force the applied by outside is called external force

Answer 2

Internal forces are those which exerts inside earth surface.
Examles - earthquake
It cannot be predict before.

They are more vunerable to us.

External forces are those which act over the earth surface.
Examples- Cyclone

They are less destructive.
We can predict its occurance before it happens.

Hope it helps you a lot friend.....