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प्रश्न
Name five renewable and three non-renewable sources of energy.
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उत्तर
Renewable:
- Sun
- Wind
- Flowing water
- Tides
- Nuclear fuel
Non-renewable:
- Coal
- Petroleum
- Natural gas
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संबंधित प्रश्न
A good fuel is one which possesses:
(a) high calorific value and low ignition temperature
(b) high calorific value and high ignition temperature
(c) high calorific value and moderate ignition temperature
(d) low calorific value and moderate ignition temperature
Most of the fuels contain carbon as one of the constituents. Name a fuel which has very high calorific value but not contain carbon.
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How does substance X make the detection of leakage of LPG easy?
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.
How does this device help in controlling air pollution?
What should be the minimum wind speed for the satisfactory working of a wind-powered electric generator?
Which of the following is needed for the formation of biogas from cow-dung and which not?
Water, Oxygen
Name the clean fuel which can be obtained from cow-dung.
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
State the main difference between the renewable and non-renewable sources of energy.
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?
