The sun most evidently.
The world's oceans contain an almost limitless amount of deuterium (heavy water) which could one day be used for energy from nuclear fusion, when scientists and engineers have learned how to do it.
Fusion reactions are not limitless. The fusion process can exhaust the supply of fuel and cause fusion to stop. Additionally, there are fusion processes that are not exothermic, but are endothermic and require energy to be put in to sustain them. Without the requisite input energy, fusion ceases.
You probably mean nuclear fusion, using heavy water found in the oceans. This would not be absolutely limitless, ie not strictly renewable, but as far as human existence goes it would be virtually limitless
energy that is ctreated by light it's uses are limitless
Wind energy is better in terms of being a cheaper energy source and for its unlimited supply, since it is renewable. However, potential sites to use wind energy are limited, cost of power storage is very high, and it is less controllable, so a backup source of energy is necessary.
Energy produced by the rise and fall of ocean levels is tidal energy. Tidal energy is a renewable source of energy that scientists have found ways to use for energy supply required around the world.
thermal energy
A nuclear fusion reaction could produce a virtually limitless and clean source of energy. This occurs when two light atomic nuclei fuse to form a heavier nucleus. This releases a large amount of energy.
Minerals do not supply plants with energy. The only source of energy for a plant is sunlight.
Fusion reactions are not limitless. The fusion process can exhaust the supply of fuel and cause fusion to stop. Additionally, there are fusion processes that are not exothermic, but are endothermic and require energy to be put in to sustain them. Without the requisite input energy, fusion ceases.
You probably mean nuclear fusion, using heavy water found in the oceans. This would not be absolutely limitless, ie not strictly renewable, but as far as human existence goes it would be virtually limitless
Coal
Carbohydrates supply glucose as the main source of energy for the body.
Fossil fuels. Anything with a finite supply.
simple carbohydrates
generate cell's supply of ATP as a source of chemical energy
energy that is ctreated by light it's uses are limitless
Make other sources of energy cheaper.Reduce the supply of oil.Increase energy efficiency for any source of energy.