Bats can ascertain distances, directions, nature and size of the obstacles at night. This is possible by reflection of the emitted:

supersonic waves from the distant object

ultrasonic waves from the distant objects

Bats can ascertain distances, directions, nature and size of the obsta

1.	Bats can ascertain distances, directions, nature and size of the obstacles at night. This is possible by reflection of the emitted:
A.	supersonic waves from the distant object
B.	supersonic waves from the bat
C.	ultrasonic waves from the distant objects
D.	ultrasonic waves from the bat
Answer» E.