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प्रश्न
Select the renewable and non-renewable sources of energy from the following :
- Coal
- Wood
- Water
- Diesel
- Wind
- Oil
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उत्तर
Renewable : Wood, Water and Wind
Non-renewable : Coal, Diesel and Oil
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संबंधित प्रश्न
Name two sources of energy which you consider to be non-renewable. Give reason for your choice.
Classify the following
Coal, Wind, Tides, Petroleum,Wood, Natural gas
What is the basis of above classification?
What is the composition of liquefied petroleum gas (LPG)?
Name the major component of biogas.
When the material A mined from the earth is heated strongly in an insufficient supply of air, it produces a solid fuel B which consists mainly of carbon. When another material C obtained from trees is heated in an insufficient supply of air, it produces another solid fuel D which also consists mainly of carbon. Name A, B, C and D
The world's known coal reserves are expected to last for about:
(a) 200 years
(b) 400 years
(c) 500 years
(d) 100 years
Answer the following question.
Write the name of the main constituent of Biogas. Also, state its percentage.
Fill in the blank
__________ are examples of renewable energy resources.
Sunlight and air are inexhaustible natural resources. Comment.
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)
