Solar energy
Where does solar energy come from?
The sun
What is wind energy?
It is the energy produced by wind.
What is geothermal energy?
Heat energy obtained from the earth is called geothermal energy.
What is tidal energy?
Energy generated from tides is called tidal energy.
What is biogas produced from?
From organic wastes like dead plant and animal material, animal dung and kitchen waste.
What is solar energy used for?
Solar heaters, solar cookers, solar dryers, etc.
Name any 2 countries in which windfarms are found.
Which country has the world's largest geothermal power plants?
USA
Name any 2 places where tidal mill farms are found.
Russia, France or the Gulf of Kachchh in India.
What are the 2 main gases in biogas?
Methane and Carbon dioxide.
What device is used to capture solar energy?
Solar panels
How is electricity produced from windmills?
High-speed winds rotate the blades of the windmills which turn a turbine connected to a generator. This produces electricity.
Name any 1 place where geothermal power plants are located in India.
Manikaran in Himachal Pradesh or Puga Valley in Ladakh.
Name the 2 advantages of tidal energy.
Non-polluting, Inexhaustible.
What is the disadvantage of using biogas?
It causes greenhouse effects.