Question

How is solar energy generated into electricity?

Answer 1

Using solar panels, solar cookers etc. the change the heat and light energy of sun into electrical.
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Answer 2

Explanation:

Advantages:

(i)Non-conventional sources of energy are inexhaustible. They do not pollute the environment.

(ii)Nuclear power is emits large amounts of energy.

(iii)Non-conventional sources of energy are low cost and easy to operate.

Disadvantages:

(i)Wind mills are costly to set up and causes noise pollution.

(ii)Windmills disturbs radio and TV broadcast and are harmful to birds.

(iii)Nuclear energy generates radioactive waste. It is expensive too.