Question

Name two energy sources that you would consider to be renewable. Give reasons for your choices.

Answer 1

Two renewable sources of energy are as follows:

(a) Sun: The energy derived from the Sun is known as solar energy. Solar energy is produced by the fusion of hydrogen into helium, fusion of helium into other heavy elements, and so on. A large amount of hydrogen and helium is present in the Sun. The Sun has billions years more to burn. Therefore solar energy is a renewable source of energy.

(b) Wind: Wind energy is derived from fast blowing air. Wind energy is harnessed by windmills in order to generate electricity. Air blows because of uneven heating of the Earth. Since the heating of the Earth will continue forever therefore wind energy will also be available forever.

Hope it helps!

Answer 2

Dear Student,

◆ Renewable energy sources -

• Following are renewable energy sources -

1. Wind energy
2. Hydroelectric energy
3. Solar energy

• Wind, water and sunlight are relatively infinite in nature. As this sources don't diminish, they are considered renewable.

(1) Wind energy -

• Windmills convert wind energy into electric energy which is very helpful in small villages.

(2) Hydroelectric energy -

• Tidal waves from sea as well as water from dams is used for production of electric energy.

(3) Solar energy -

• Solar plates made of silicon convert sunlight into electrical energy. This can be used for household as well as industrial purposes.

Thanks dear for the question. Hope I was helpful to you..