Question

Red Indians Can find out whether an enemy is approaching their camp by putting their ear to the ground

Answer 1

Answer:

OK..!!!!!!!!!!!!!!!!!

Answer 2

Yes, the given statement is completely true.

Scientific reason :

• The sound waves need some kind of medium (solid or fluid) for their propagation.
• When there will be movements of human beings in nearby places, the sounds made from those movements will propagate through the ground.
• Now, this propagation of sound will be very faint and we cannot normally hear those sounds while keeping our ears in normal position. But, when we put our ear on the ground, the faint sound waves get a chance to propagate in our ears also.
• In this way, the red Indians can find out whether an enemy is approaching their camp by putting their ear to the ground.