" 1.Is the source of a star's energy? "

What is the source of energy of stars?

The source of unlimited thermal energy of stars is due to

What is the source of energy of sun or stars ?

What is the source of energy in the sun and other stars?

(a) What is the source of energy of this sun and other stars ? (b) Describe the working of a hydrogen bomb. (c ) What is common between the sun and a hydrogen bomb ?

Assertion:Fusion of hydrogen nuclei into helium nuclei is the source of energy of all stars. Reason:In fusion heavier nuclei split to form lighter nuclei.

What is a source of energy ? What are the two main categories of the sources of energy ?