Give advantages and disadvantages of a) fossil fuel b) thermal power plant c) wind energy.
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Answers
Answer:
Advantages:
Fossil fuels can generate a large amount of electricity at a single location.
They can be found very easily.
They are cost-effective.
Transportation of oil and gas can be done easily through pipelines.
They have become safer over time.
Despite being a finite resource, it is available in plenty.
Disadvantages:
Fossil fuels emit carbon dioxide when burnt which is a major greenhouse gas and the primary source of pollution. This has contributed to global warming.
They are a non-renewable resource, i.e., once used they cannot be replaced.
Combustion of fossil fuels makes the environment more acidic. This has led to unpredictable and negative changes in the environment.
Harvesting of fossil fuels also causes fatal diseases among the people. For eg., the coal miners often suffer from Black Lung Disease. The natural gas drillers are constantly exposed to chemicals and silica which is dangerous for their health.
Advantages of thermal power plant are:
Thermal power station has less initial cost as compared to hydro-electric generating station.
It requires less space as compared to the hydro-electric power station.
The fuel cost is less as compared to gas.
Hung amount of power can be generated by TPS.
The cost of generation is less as compared to diesel power station.
Disadvantages of thermal power plant are:
The running cost of thermal power station is more as compared to hydro power station.
It pollutes the atmosphere due to production of large amount of smoke and fumes.
Maintenance cost is more.
Skilled persons are required for erecting and maintaining the power station.
Land requirement is more for storage of coal and ash.
ADVANTAGES OF WIND POWER
Wind energy is free and with modern technology it can be captured efficiently.
Once the wind turbine is built the energy it produces does not cause green house gases or other pollutants.
Although wind turbines can be very tall each takes up only a small plot of land. This means that the land below can still be used. This is especially the case in agricultural areas as farming can still continue.
DISADVANTAGES OF WIND POWER
The strength of the wind is not constant and it varies from zero to gale force. This means that wind turbines do not produce the same amount of electricity all the time. There will be times when they produce no electricity at all.
Many people feel that the countryside should be left untouched, without these large structures being built. The landscape should left in its natural form for everyone to enjoy.
Wind turbines are noisy. Each one can generate the same level of noise as a family car travelling at 70 mph.
Many people see large wind turbines as unsightly structures and not pleasant or interesting to look at. They disfigure the countryside and are generally ugly.
When wind turbines are being manufactured some pollution is produced. Therefore wind power does produce greenhouse gasses and pollution.
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