Q10 of 58 Page 31

Nithin says thermal power is better to use, but Padmaja says that Solar Energy is better. Which of them do you support? Why?

Solar energy is better to use because coal-based power plants are the major cause of pollution, emitting high amounts of carbon dioxide in the atmosphere.

The Sun is the principal source of energy on the Earth’s surface i.e. a powerhouse which generates and gives out energy in the form of light and heat. The heat the Earth receives from the Sun is radiated back by the Earth in different ways. The rays of the sun heat up the surface of the Earth’s first, this in turn heats the atmosphere.


Some gases like carbon dioxide prevent radiation of heat from the Earth and if the proportion of carbon dioxide increases (due to use of petrol and diesel, cutting down of forests etc.), then less heat would be radiated thus causing an increase in global temperatures.


Therefore, the use of thermal power plants would contribute to increasing carbon dioxide emissions, thus contributing to global warming.


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