solar, wind, and geothermal energy
sunlight
solar power
The insect depends on the sun for energy because the sun is the source of energy for most living things
The source of the energy used in active transport is the electrochemical gradient. Another possible source of energy for active transport is the breakdown of ATP molecules.
sulfuric acid
Mayflies are an important food source for fish and other bug-eating wildlife. In most areas where Mayflies live, they are plentiful. They tend to reproduce near clean, unpolluted waters, so they may signal that fish from that stream is safe to eat.
the sun
It is plentiful and cheap.
No, but as hydrogen is the most plentiful element in both the earth's oceans and the universe there is more of it than we are likely ever to consume, assuming we can make fusion reactors.
The source of energy for most organisms is chemical energy and sunlight.
fule fossile is the most used energy source
The Sun is the main and most important energy source.
Wind is helpful because it provides a plentiful, renewable source of energy. It can readily be harnessed through large wind turbines.
Nuclear energy that is the source of sun energy which in turn is the source of fossil and renewable energies.
The sun is the main source of energy on earth.
The carbohydrates are the main source of energy from the food you eat, becausethey are most easily converted to useable energy. Fats are the second energy source used.Proteins are the third and most difficult source to be converted to energy.
Glucose is the most common energy source in cellular respiration.
more plentiful, most plentiful
Cheapest source of energy. Coal also provides a stable source of energy (no Arab oil embargoes, no sudden scarcity like you experience with natural gas) and there is a very plentiful supply both in the U.S. and in other foreign countries.