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Which of the following energy sources produces NO atmospheric pollution?
1. Nuclear energy
2. Solar energy
3. Petroleum energy
4. Coal energy

1 Answer

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Best answer
Correct Answer - Option 2 : Solar energy

The correct answer is Solar energy.

Solar energy:

  • Energy harnessed from the sun directly is called solar energy.
  • It is used to generate electricity with solar cells.
  • Solar energy is a clean source of energy and hence does not produce atmospheric pollution.

Nuclear energy:

  • It originates from the splitting of uranium atoms, a process called fission.
  • This generates heat to produce steam, which is used by a turbine generator to generate electricity.
  • It is a non-renewable resource of energy.

Renewable resources:

  • Renewable resources of energy are those that can be replenished or renewed naturally over time. As they are clean sources of energy they does not produce air pollution.
  • Air, water, wind, solar energy, biogas, Hydrogen, etc are all renewable resources of energy.
  • Wind energy: Energy generated due to windmills.
  • Hydrogen: Energy generated with the use of hydrogen or/and hydrogen-containing compounds has minimum pollution and produces maximum energy on burning.
  • Biogas: It is a mixture of gases such as methane, carbon dioxide, hydrogen, etc and is obtained by the decomposition of animal and plant wastes.

Non-renewable resources:

  • Fossil fuels like coal and petroleum are non-renewable resources of energy. Nonrenewable energy typically releases carbon dioxide, methane, and other gasses into the atmosphere.
  • They are found deep inside the earth and are made by natural processes over many years. 
  • Examples of fossil fuels are coal, petroleum, natural gas, etc.

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