The bells of a college or a temple are made of large size. It is for :

Bells are made of

Why bells of colleges and temple are of large size?

The outer case of the bell in a temple is made big. Give a reason.

The aperture of a telescope is made large, because

The aperture of a telescope is made large, because

Why are bells made of metals?

Why are bells made of metals?

Tadpoles can be made to grow in size by :-

Give reason for the following statement- Bells that are used in schools and temples are made up of an alloy.