The original source of the energy in any combustible plant material is from the sun.
The original source of energy for hydroelectricity is water.
Yes, firewood is a convential source of energy. It is because firewood is widely used for cooking and heating in our country, more than 50% of energy used in villages come from firewood.it has become difficult to use firewood because of decreasing forest area.Advantages of using firewood:-* Most common in rural areas of India for cooking.* Easily available to the villagers.Disadvantages of using firewood:-* Leads to deforestation.* Time consuming.* Polluting can cause eye pollution.* Gives green house effect.
The original source of energy for hydroelectricity is water.
The original source of energy for hydroelectricity is water.
the original source of energy for both coal and wind is the sun.
The SUN!
Assuming you mean the source of energy, the original source of all energy for life on this planet is the sun.
The Sun
ATP
The sun
Oil
The Sun.