Question

Which of the following sources of energy does not cause atmospheric pollution

• A. Coal
• B. Petroleum
• C. Wind energy
• D. Wood

Answer 1

The correct option is C

Wind energy

Explanation of the Correct Option-

1. Wind energy is the one that converts the wind (air) into electricity.
2. The wind turbines in the windmills are present to convert the kinetic energy of the wind into mechanical energy.
3. It does release any pollutants into the environment that can cause pollution.

Explanation of the Incorrect Option-

Option (a)

1. When coal is burned it produces many harmful pollutants such as carbon dioxide, sulfur dioxide, nitrogen dioxide, mercury, etc. thereby causing environmental pollution.

Option (b)

1. When the petroleum is burned its vapors consist of toxic pollutants like carbon monoxide, unburned hydrocarbon, etc. thus causing pollution.

Option (d)

1. Burning of wood produces heat and emits harmful substances like water vapors, carbon dioxide, carbon monoxides, etc. thus causing pollution.

Hence, option (c) is the correct answer.