Question

what is a shadow ? explain how shadow is formed

Answer 1

Basically an object that does not allows any light to pass through will form a shadow.Shadows are formed by light, because if light shines onto an object, and the object blocks the light, the light will go sideways of the object, and therefore, a shadow is formed. Light can only travel in straight lines.

Answer 2

generaly shadow is a light they passes for objects and then formed shadow but if the water bottom the colour is green the shadow is also only sunlight is green