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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Give your opinion about whether hydroelectric plants are environment friendly or not?

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प्रश्न

Give your opinion about whether hydroelectric plants are environment friendly or not?

सविस्तर उत्तर
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उत्तर

Advantages of Hydroelectric Power Plants:

  1. Hydroelectric power generation does not require the burning of fuels; therefore, it does not cause air pollution or release toxic gases.
  2. Electricity can be generated whenever required, provided there is sufficient water in the reservoir.
  3. Water is a renewable resource and is replenished through rainfall.
  4. Hydroelectric power is a clean and renewable energy source.

Disadvantages of Hydroelectric Power Plants:

  1. The construction of dams and reservoirs submerges villages and settlements, displacing people.
  2. Rehabilitation of displaced people often causes social and emotional problems.
  3. Forest areas may be submerged, resulting in loss of biodiversity.
  4. Dams obstruct the natural flow of rivers, affecting aquatic plants and animals.
  5. The large pressure exerted by stored water may increase the risk of earthquakes in some regions.
Thus, although hydroelectric power is a renewable and relatively clean energy source, it also has environmental and social impacts.
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पाठ 5: Towards Green Energy - Exercises [पृष्ठ ६०]

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बालभारती Science and Technology 2 [English] Standard 10 Maharashtra State Board
पाठ 5 Towards Green Energy
Exercises | Q 13. | पृष्ठ ६०

संबंधित प्रश्‍न

What is hydroelectricity? Explain the basic principle of generation of hydroelectricity with the help of a labelled diagram. 


 State two advantages of producing hydroelectricity.


The harnessing of which of the following leads to the destruction of large eco-systems?

(a) thermal power
(b) tidal power
(c) hydro power
(d) geothermal power


 Describe the working of a hydrogen bomb.


 What is common between the sun and a hydrogen bomb?


Write any two limitations of hydro-energy.


Read the information given below and solve the questions based on it.
Electric energy is produced in various ways like hydroelectric, wind power, Solar energy, bio-fuel, etc. These energy sources are inexhaustible, sustainable. Besides, it does not cause any environmental problem.
i. Above information is about which type of energy?
ii. Whether the fossil fuel is an example of this energy?
iii. Draw the flow chart of production of electric energy.


Explain with a diagram of step-by-step energy conversion in a hydroelectric power plant.


Give scientific reasons:

Hydroelectric energy, solar energy and wind energy are called renewable energies.


Give scientific reasons:

It is possible to produce energy from mW to MW using solar photovoltaic cells.


Draw a neat and labelled diagram of energy transformation in solar thermal electric energy generation.


Kinetic energy in flowing water drives ________ to generate electricity.


Electrical energy can be generated using wind.


In a windmill, the rotating blades drive the turbine and the turbine in turn drives the generator to generate electricity.


Draw the flowchart showing generation of electrical energy through hydroelectric power plant.


Hydropower plants are located in the ____________.


______ have long economic lives and low operating cost.


In a hydroelectric power plant more electrical power can be generated if water falls from a greater height because


The Hydroelectric capacity of Koyna dam is ______.


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