The answer you're probably looking for is hydropower.
Hydro-electricity is a clean source of energy. It is because energy is harnesses from flowing water. It does not cause pollution.
Point-Source Pollution
The water table was polluted by the pollution source due to rainfall or ground water contamination near the pollution site.
Coal is a source of energy but i dontknow about all of them.
Coal is an abundant but dirty energy source. It releases large amounts of carbon dioxide and other pollutants when burned, contributing to air and water pollution.
Water pollution, it can cause serious problems like industrial wastes can.
which are processes involved in the water cycle?
Groundwater pollution.
The number one source of pollution varies by region and type of pollution. Common sources include the burning of fossil fuels for energy production, transportation emissions, industrial activities, agriculture practices, and waste disposal. Each of these sources contributes to different types of pollution such as air pollution, water pollution, and soil contamination.
No. The sun is too hot for water molecules to stay together. The sun's source of energy is hydrogen, which makes up most of its mass.
Sewage
fertalizer runoff