Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation ?

Options

A. Nuclear energy
B. Thermal energy
C. Solar energy
D. Geothermal energy

Answer

C

Explanation

Solar energy leads to least environmental pollution in the process of its harnessing and utilisation. In nuclear energy, emission of radiation is a high risk for environmental contamination.
In thermal energy, heat produced by burning fossil fuels causes huge environmental pollution. In geothermal energy, noise pollution is created by drilling operations at geothermal sites.