Question

What is a good source of energy?
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Answer 1

$\huge\star{\underline{\mathfrak{Answer}}}$

A good source of energy is

• which releases large quantity of energy
• which doesn't release smoke
• which doesn't release harmful gases
• which is easily available
• which is easy to transport
• and which is not costly

Answer 2

Explanation:

the things which not create pollution and burns easily and produces large amount of energy and have higher ignition, temperature that substance is known as good source of energy