Question

(B) Write Names of two sources of energy without any pollution.​

Answer 1

Explanation:

Solar energy from the sun.

Wind energy.

Geothermal energy from the heat inside the earth.

Hydropower from flowing water.

Ocean energy in the form of wave, tidal, current energy and ocean thermal energy.

Biomass from plants.

Answer 2

Answer:

The sun, wind and water are the sources of energy which are pollution free.

Explanation:

• The sun is the main source of energy on Earth. Other energy sources include coal, geothermal energy, wind energy, biomass, petrol, nuclear energy, and many more. Energy is classified into various types based on sustainability as renewable sources of energy and non-renewable sources of energy.
• The primary sources of energy in the environment include fuels like coal, oil, natural gas, uranium, and biomass. All primary source fuels except biomass are non- renewable. Primary sources also include renewable sources such as sunlight, wind, moving water, and geothermal energy. There are 6 more fundamental concepts.
• The sun is called the ultimate source of energy because it is the source of almost all energies of the earth. Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis.

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