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Answer:

1. The following are the things that run the turbines in the power plants:

a. Hydroelectric power plant - The turbines in a hydroelectric power plant are typically run by the force of falling water, which is used to spin the turbines and generate electricity.

b. Geothermal power plant - The turbines in a geothermal power plant are typically run by steam, which is produced by tapping into reservoirs of hot water or steam beneath the Earth's surface.

c. Fossil fuel power plant - The turbines in a fossil fuel power plant are typically run by burning coal, natural gas, or other fossil fuels to produce steam, which is used to spin the turbines and generate electricity.

d. Nuclear power plant - The turbines in a nuclear power plant are typically run by steam, which is produced by heating water using the heat generated by a nuclear reaction.

2. The function of a generator is to convert mechanical energy into electrical energy. As the turbines move, they generate mechanical energy, which is then used to spin the generator and produce electricity.

3. No, not all the energy produced in a power station is converted into electrical energy. In fact, a significant amount of energy is lost as heat during the energy conversion process. For example, in a fossil fuel power plant, only around 30-40% of the energy contained in the fuel is converted into electricity, while the rest is lost as waste heat. This is due to the second law of thermodynamics, which states that energy cannot be completely converted from one form to another without some loss of usable energy.

Answer:

1. The following run the turbines in the power plants:

a. Hydroelectric power plant - falling water

b. Geothermal power plant - steam produced by hot rocks underground

c. Fossil fuel power plant - steam produced by burning fossil fuels (coal, oil, or natural gas)

d. Nuclear power plant - steam produced by nuclear reaction

2. The function of a generator is to convert the mechanical energy obtained from the turbines into electrical energy.

3. No, not all the energy produced in a power station is converted into electrical energy. The conversion process is not 100% efficient and some energy is lost in the form of heat and other forms of waste. This is due to the Second Law of Thermodynamics which states that no process is 100% efficient.

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