Question

Birds flying in the sky do not cast their shadows on the earth. give reason ​

Answer 1

Explanation:

When the bird is flying high in the sky the distance between the body and the surface of the Earth is too large and hence even though the light is obstructed by the bird's body it cannot cast its shadow due to the large distance. 

Answer 2

Answer:

It is due to the large distance between bird body and earth surface..