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Why is using renewable energy sources considered efficient?

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Important Questions on Current Electricity

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Science>Physics>Current Electricity>Efficient Use of Energy
What is the unit of electrical energy consumption?
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Science>Physics>Current Electricity>Efficient Use of Energy
What social initiatives must be taken for the sensitive use of energy?
HARD
Science>Physics>Current Electricity>Efficient Use of Energy

How are thermal power plants polluting the environment?

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Science>Physics>Current Electricity>Efficient Use of Energy

 Which of the following is a problem associated with the disposal of coal ash from thermal power plants?

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Science>Physics>Current Electricity>Efficient Use of Energy
State an example to explain the use of modern Eco-friendly technologies for less pollution and efficiency in the energy used
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Science>Physics>Current Electricity>Efficient Use of Energy
The most non-polluting and efficient lighting device is:
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Science>Physics>Current Electricity>Efficient Use of Energy
Which of the following energy sources is most efficient for household use?
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Science>Physics>Current Electricity>Efficient Use of Energy
What are disadvantages of thermal power plants?
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Science>Physics>Current Electricity>Efficient Use of Energy
IEA is the short form of:
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Science>Physics>Current Electricity>Efficient Use of Energy
What is meant by efficient use of energy?
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Science>Physics>Current Electricity>Efficient Use of Energy
What environmental issue is primarily associated with the burning of coal in thermal power plants?
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Science>Physics>Current Electricity>Efficient Use of Energy

How does proper insulation of home save energy?

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Science>Physics>Current Electricity>Efficient Use of Energy

State two ways to save energy.

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Science>Physics>Current Electricity>Efficient Use of Energy
Which appliance is known for high energy consumption?
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Science>Physics>Current Electricity>Efficient Use of Energy
What are the types of pollutants coming from a thermal power station?
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Science>Physics>Current Electricity>Efficient Use of Energy
Which of the following devices is most efficient for lighting purposes: LED, CFL, fluorescent tube light, and electric bulb.
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Science>Physics>Current Electricity>Efficient Use of Energy
Cotyledons are also called-
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Science>Physics>Current Electricity>Efficient Use of Energy
The energy resource for the thermal power plants is 
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Science>Physics>Current Electricity>Efficient Use of Energy
Describe three ways for the efficient use of energy.
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Science>Physics>Current Electricity>Efficient Use of Energy
Which fuel is commonly used in thermal power plants?