Oil is limited, pollutes a lot and has a greenhouse effect
Solar energy is expensive, but it is clean and will be mainstream in the future
Wind energy is very geographically restricted, clean and pollution-free, and the technology needs to be improved
Hydraulic energy is widely used, clean and renewable
Geothermal energy n It's only available in a few regions.
Nuclear energy is dangerous and the waste produced is difficult to treat
In fact, it can be understood that solar energy is converted into another energy.
1. Wind energy: different latitudes and altitudes of the earth, land and ocean receive different energies from the sun, and the air temperature is different, forming a cycle of cold and hot air, like the wind blowing . from ocean to land.
2. Fossil fuels: oil, natural gas, coal, etc., derived from dead animalsand plants in Antiquity. Based on the knowledge of the biological chain, it is not difficult for the author. note that the energy of animals and plants comes fundamentally from the photosynthesis of green plants, and also from solar energy.
3. Energy of water: It is the gravitational potential energy of water located at height. The sun evaporates water from oceans and lakes, redistributing water resources as precipitation. The gravitational potential energy obtained by water falling at high altitudes is actually converted by solar energy during evaporation.
4. Other Chemical Energy: As part of the biological chain, the energy in you and me also comes from solar energy; the food we eat comes from other organisms, and the energy source is also solar energy; burn wood, leaves, etc. actually burns components of living organisms, the energy comes fromalso from the sun.
It can be seen that coal, oil, natural gas, wind power and water power all come from solar energy.