Advertisements
Advertisements
प्रश्न
Give your opinion about whether hydroelectric plants are environment friendly or not?
Advertisements
उत्तर
Advantages of Hydroelectric Power Plants:
- Hydroelectric power generation does not require the burning of fuels; therefore, it does not cause air pollution or release toxic gases.
- Electricity can be generated whenever required, provided there is sufficient water in the reservoir.
- Water is a renewable resource and is replenished through rainfall.
- Hydroelectric power is a clean and renewable energy source.
Disadvantages of Hydroelectric Power Plants:
- The construction of dams and reservoirs submerges villages and settlements, displacing people.
- Rehabilitation of displaced people often causes social and emotional problems.
- Forest areas may be submerged, resulting in loss of biodiversity.
- Dams obstruct the natural flow of rivers, affecting aquatic plants and animals.
- The large pressure exerted by stored water may increase the risk of earthquakes in some regions.
APPEARS IN
संबंधित प्रश्न
A hydro-power plant converts one form of energy into another. Name the two forms of energy.
State two advantages of producing hydroelectricity.
State two disadvantages 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
Which of the two is a cleaner fuel: hydrogen of CNG? Why?
Describe how hydro-energy can be converted into electrical energy.
Write any two limitations of hydro-energy.
Explain with a diagram of step-by-step energy conversion in a hydroelectric power plant.
Give a scientific reason:
It is possible to produce energy from mW to MW using solar photovoltaic cells.
Find an odd one out.
Electrical energy can be generated using wind.
In a hydroelectric power plant, the potential energy in water stored in a dam is converted into kinetic energy.
Observe the given diagram and answer the questions.

- Which type of energy is generated?
- This power station depends on which factors?
- Is it environment friendly?
Complete the following flow chart.

Choose the correct statement.
______ have long economic lives and low operating cost.
Complete the stages in electric generator using wind energy.

