Study Geography notes on Energy Sources and Development. Useful for revision, homework, and exam preparation in Zimbabwe.
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ENERGY SOURCES AND DEVELOPMENT Renewable energy sources -these can regenerate or replenish themselves and can be used over and over again -these cause little or no environmental pollution -renewable energy sources include hydro electric power, biomass, wind, solar, geothermal, tidal and wave power -some of the resources for example forests and soils are if left to nature renewable but if used carelessly by people can be destroyed by deforestation and soil erosion -some of the energy sources like wind power, solar power and wave power are not affected by human beings Non renewable energy resources -these are finite as their exploitation can lead to the exhaustion of supplies -these are those energy sources which once used up will never occur naturally in the environment -therefore, there is great need to conserve or use them wisely e. g. by introducing substitutes -examples include fossil fuels (oil, natural gas and coal) Energy reserves -these are known resources which are considered exploitable under current economic and technological conditions -oil and natural gas need advanced technology and high global prices to be exploited -tidal and wave power still lacks the technology to be exploited -Coal and wood fuel are found in abundance and are easy to exploit and develop Fossil fuels -are combustible materials made from fossilised remains of plants and animals -once exhausted, fossil fuels deposits cannot be replenished hence they are referred to as non renewable energy resources -examples of fossil fuels are coal, oil and natural gas Primary energy