Write an essay comparing the feasibilty of different sources of energy. Consider the advantages and disadvantages of sunlight,wind power,biofuels and geothermal energy,comparing them with each other and with fossil fuels. You may also include nuclear and hydroelectric power in your essay. For each source of energy,review some of those aspects and any others you wish to discuss:
. cost
.environmental impact
.reserves (especially of fossil fuels)
.renewability
.technological difficulties
.economic benefits