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प्रश्न
Can you tell?
What is ‘green energy’?
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उत्तर
The forms of energy which do not produce smoke and carbon gases such as carbon dioxide or carbon monoxide are known as green energy. Green energy is energy derived from renewable, environmentally friendly sources such as solar, wind, hydro, geothermal, and biomass. It produces little to no pollution and helps combat climate change.
संबंधित प्रश्न
What is the composition of liquefied petroleum gas (LPG)?
What is meant by conventional sources of energy? Write the names of two conventional sources of energy.
Explain how, sun is considered to be the ultimate source of fossil fuels
What is the function of anaerobic micro-organisms such as anaerobic bacteria in a biogas plant?
Suggest a safe and efficient method for the disposal of biowastes and sewage materials. How is this method advantageous to us?
The fossil fuel whose known reserves in the earth are expected to last for the minimum period is:
(a) coal
(b) uranium
(c) petroleum
(d) natural gas
Explain why is it no wise to regard wood as a renewable sources of energy.
Write about Renewable resources.
What are the environmental consequences of using fossil fuels? Suggest the steps to minimise the pollution caused by various sources of energy including non-conventional sources of energy.
Complete the crossword in figure with the help of the clues:

Across
1. Fuels obtained from dead remains of living organisms. (6, 5)
2. A process by which the various constituents of petroleum are separated. (8)
3. A porous black substance obtained from coal. (4)
4. Another name for motor fuel. (6)
Down
5. The substance obtained by carbonisation. (4)
6. Fuel for heavy motor vehicles. (6)
7. A petroleum product used for road surfacing. (7)
8. Dead remains of sea animals got converted into it. (9)
