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प्रश्न
Fill in the blanks in the following sentence.
Coal is one of the ______ used to cook food.
उत्तर
Coal is one of the fuels used to cook food.
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संबंधित प्रश्न
Coal is said to be formed from the wood of trees. Why then is coal considered to be a non-renewable source of energy whereas wood is a renewable source of energy?
State one important use of CNG these days.
Which fossil fuel formed by the buried remains of large land plants?
The pollution of air caused by burning petroleum fuels (like petrol and diesel) in vehicles can be controlled by fitting a device X in the exhaust system of vehicles.
Name the device
Compare the sun and the fossil fuels as the sources of energy.
Select the renewable and non-renewable sources of energy from the following :
- Coal
- Wood
- Water
- Diesel
- Wind
- Oil
What are renewable energy resources?
Why is charcoal considered better fuel than wood?
Air is a natural resource and cannot be exhausted by human activities. It is known as inexhaustible natural resource. Which of the following is another inexhaustible natural resource?
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)
