Question

Name two sources of energy which are pollution free.

Answer 1

Pollution free refers to any form of energy that is produced from natural resources such as sunshine, wind, or water. The most important aspect of these energy resources is that they do not affect the environment by emitting greenhouse gases into the atmosphere.

Complete answer:
Pollution free is often derived from renewable energy technologies such as solar, wind, geothermal, biomass, and hydroelectric power as a source of energy. Each of these technologies generates energy in a different way, whether it's through harnessing the sun's energy using solar panels, wind turbines, or the flow of water.
A resource cannot cause pollution, like fossil fuels do, in order to be classified as green energy. This means that not all renewable energy sources are environmentally friendly. Power generation that burns organic material from sustainable forests, for example, may be renewable, but it is not necessarily green due to carbon-di-oxide released during the burning process.
Pollution free sources are frequently renewed naturally, unlike fossil fuels such as natural gas and coal, which can take millions of years to create. Pollution free sources also prevent hurting eco-systems by avoiding mining and drilling operations.
The two sorts of pollution-free energy resources are solar and wind power:
1. Solar Energy:-
Solar energy is the earth's initial source of energy, and it has long been used to generate energy by living beings such as plants. It is now used to produce heat and light. Solar power has now become economical enough to be used for domestic uses, such as garden lighting, as well as to power entire neighbourhoods on a wider scale.
2. Wind Energy:-
Wind is another renewable energy source that may be harnessed using windmills and does not pollute the environment. Wind energy, which is best suited to offshore and higher altitude locations, harnesses the strength of the world's air flow to propel turbines that generate electricity.

Note:
It’s worth mentioning that photosynthesis is a process by which plants fix solar energy to make biomass. This biomass goes through a series of cycles, yielding a variety of energy sources. For example, animal fodder that produces excrement, agricultural waste for cooking, and so on.