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They are because they polute the air and water of the earth.
The Sun is the main and most important energy source.
Most energy used in today's society is harmful tot the environmnet and our planet. Conserving energy will let off less harmful emmisions and lessen the demand for utilities that give off harmful energy
solar energy
nonrenewable sources of energy
They are because they polute the air and water of the earth.
solar energy and win energy are the most environment friendly because the are renewable source of energy.moreover they are present in abundance.whereas water is also a renewable source but it is more difficult to renew it.hence solar and wind energy are the best option.
The nuclear energy is now the most important source of alternative energy.
An alternative resource, just as the term implies is a source of something which is different from the most common source. For example the most common source of automotive fuel is fossil fuels pumped from the ground, however it is possible to make automotive fuel from corn oil or from sugar. These would be alternative resources. These will help people in the future!
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.
Petroleum is useful because it gives you, in terms of energy, the most bang for your buck. It can be harmful to the environment, but careful regulation dispels some of its effects.
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.
it is nuclear
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.