Alternative Energies(1/2)
Fossil fuels, coal oil and gas, will eventually run out. Other ways must be developed of generating energy.
Some sources of energy are renewable. This means that however much energy you use, the source does not run out.
These renewable energy sources don't produce pollution and so can reduce the damage that is done to the environment.
Water Power
Energy from water can be obtained in several ways. The most successful of the possible techniques have been used for many years in most parts of the world. This involves using the kinetic energy obtained by water in falling large distances to drive turbines and generators to produce electricity. Generating stations that utilize this technique are referred to as hydro-electric stations.
Hydro-electric power plants convert the kinetic energy contained in falling water into electricity. The energy in flowing water is ultimately derived from the sun, and is therefore constantly being renewed. Energy contained in sunlight evaporates water from the oceans and deposits it on land in the form of rain. Differences in land elevation result in rainfall runoff, and allow some of the original solar energy to be captured as hydro-electric power.
Fossil fuels, coal oil and gas, will eventually run out. Other ways must be developed of generating energy.
Some sources of energy are renewable. This means that however much energy you use, the source does not run out.
These renewable energy sources don't produce pollution and so can reduce the damage that is done to the environment.
Water Power
Energy from water can be obtained in several ways. The most successful of the possible techniques have been used for many years in most parts of the world. This involves using the kinetic energy obtained by water in falling large distances to drive turbines and generators to produce electricity. Generating stations that utilize this technique are referred to as hydro-electric stations.
Hydro-electric power plants convert the kinetic energy contained in falling water into electricity. The energy in flowing water is ultimately derived from the sun, and is therefore constantly being renewed. Energy contained in sunlight evaporates water from the oceans and deposits it on land in the form of rain. Differences in land elevation result in rainfall runoff, and allow some of the original solar energy to be captured as hydro-electric power.
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