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प्रश्न
Why should we conserve the non-renewable sources of energy?
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उत्तर
We should conserve the non-renewable sources of energy because if these sources once finished, cannot be regenerated over a reasonable period of time.
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संबंधित प्रश्न
Name the component which is found in natural gas well as in biogas.
Complete the following sentence:
Domestic gas cylinders like Indane contain mainly ..............
What is meant by conventional sources of energy? Write the names of two conventional sources of energy.
The main constituent of petroleum gas is:
(a) methane
(b) ethane
(c) butane
(d) propane
Apart from cattle dung, what other substances can be added to a biogas plant?
The constituent of biogas which makes it an excellent fuel is:
(a) butane
(b) methane
(c) propane
(d) ethane
Select the renewable and non-renewable sources of energy from the following :
- Coal
- Wood
- Water
- Diesel
- Wind
- Oil
Name five renewable and three non-renewable sources of energy.
Exhaustible natural resources are
Match the items given in Column I with the items of Column II.
| Column I | Column II |
| (a) Used for road surfacing | (i) Black gold |
| (b) Natural gas | (ii) Vaseline and candles |
| (c) Petroleum | (iii) Bitumen |
| (d) Paraffin wax | (iv) CNG |
