ផលិតកម្មអគ្គិសនី
ផលិតកម្មថាមពលកើតឡើងវិញ
ផលិតកម្មថាមពលកើតឡើងវិញ
(English) Renewable sources of energy include biofuels, solar, wind, tidal and geothermal energy. Fossil fuels such as petroleum or coal are not renewable. ...
(English) Renewable sources of energy include biofuels, solar, wind, tidal and geothermal energy. Fossil fuels such as petroleum or coal are not renewable. ...