Question

Why did the stars appear to be twinkling?

Answer 1

when moon is glowing then moons light 8s fall on stars and they are twinkle.

Answer 2

The reflection of the stars should come in straight line to the earth but when it enters the earth's atmosphere, The light gets bend due to the particles of air molecules present in the atmosphere..

This is Refraction of light

So the stars in the beautiful night sky appears twinkling

Hope it helps !