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Energy from Sun, Wind and Water Video Lecture | Our Wondrous World Class 5 - New NCERT

FAQs on Energy from Sun, Wind and Water Video Lecture - Our Wondrous World Class 5 - New NCERT

1. What are the main sources of renewable energy from the sun, wind, and water?

Ans. The main sources of renewable energy include solar energy from the sun, wind energy generated by air movement, and hydro energy produced from flowing water. Solar panels capture sunlight and convert it into electricity, wind turbines harness wind power to generate energy, and hydropower plants use the flow of water to produce electricity.

2. How does solar energy work and what are its advantages?

Ans. Solar energy works by using photovoltaic cells in solar panels to convert sunlight into electricity. The advantages of solar energy include its abundance, as sunlight is available almost everywhere, its environmental benefits because it produces no greenhouse gases during operation, and its potential to reduce electricity bills for homeowners by generating their own power.

3. What is wind energy and how is it generated?

Ans. Wind energy is generated by using wind turbines that convert the kinetic energy of wind into mechanical power, which is then transformed into electricity. As the wind blows, it turns the blades of the turbine, which spins a generator to produce electrical energy. Wind energy is clean and renewable, contributing to reduced reliance on fossil fuels.

4. What are the benefits of using hydropower as an energy source?

Ans. The benefits of using hydropower include its efficiency in generating large amounts of electricity, its reliability as a stable power source, and its low impact on the environment compared to fossil fuels. Hydropower facilities can also provide flood control and water supply, and they help in maintaining ecosystem balance in rivers.

5. Why is it important to transition to renewable energy sources?

Ans. Transitioning to renewable energy sources is crucial for reducing greenhouse gas emissions, combating climate change, and decreasing reliance on non-renewable resources like coal and oil. Renewable energy promotes energy security, creates jobs in new technologies, and supports sustainable development, ensuring that future generations have access to clean energy.

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Sep 19, 2025 Last updated

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	Our Wondrous World Class 5 - New NCERT 11 videos\|234 docs\|10 tests

Our Wondrous World Class 5 - New NCERT

11 videos|234 docs|10 tests

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