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How can fish ladders mitigate dam impacts?
Fish ladders allow fish to bypass dams, enabling them to migrate upstream for breeding.
How can habitat restoration offset dam impacts?
Restoring riparian habitats and wetlands can compensate for habitat loss due to dam construction.
How can selective water withdrawal improve water quality?
Releasing water from different reservoir depths can help manage water temperature and oxygen levels downstream.
What is hydropower?
Harnessing moving water to generate electricity using turbines.
Define reservoir in hydropower context.
Artificial lake created by a dam, storing water for electricity generation.
What is a turbine?
A device that converts the kinetic energy of water into mechanical energy.
Define kinetic energy.
Energy possessed by an object due to its motion.
What is a generator?
A device that converts mechanical energy into electrical energy.
How does hydropower generate electricity?
Moving water turns a turbine, which powers a generator to produce electricity.
Explain the role of a dam in hydropower generation.
Dams create reservoirs to store water and control its release for power generation.
What are the benefits of hydropower compared to fossil fuels?
Hydropower is renewable, produces no air pollution, and can provide flood control.
What are the environmental impacts of building a hydroelectric dam?
Habitat disruption, altered water flow, and potential methane emissions from reservoirs.
How does the height of a dam affect power generation?
Greater height increases the water's kinetic energy, leading to more electricity generation.
What is the significance of reservoirs in hydropower?
Reservoirs store water, allowing for controlled release and consistent power generation.
How does hydropower contribute to a country's energy mix?
It provides a renewable and reliable source of electricity, reducing reliance on fossil fuels.
What are the economic considerations of hydropower?
High initial construction costs but low operating costs and long lifespan.
Explain the concept of 'run-of-river' hydropower.
A type of hydropower that uses the natural flow of the river without a large reservoir.
What are the limitations of tidal wave hydropower?
Limited locations, high construction costs, and potential impacts on marine ecosystems.