The materials that do not allow light to pass through them are :

Write T for true and F for false 

The objects that do not emit their own light are called luminous objects.

Write T for True and F for False.

The light is produced by a living organism when the enzyme called luciferase chemically reacts with the oxygen in the air.

Write T for True and F for False.

Wood does not allow light to pass through.

Write T for True and F for False.

A shadow shows only the outline of the object.

Write T for True and F for False.

The shadow of an object is no longer in noon than in the morning.