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प्रश्न
Why are we looking at alternate sources of energy?
उत्तर
Fossil fuels which are traditionally used by human beings everywhere as an energy sources are non-renewable sources of energy. These sources of energy are limited and will disappear after some time. They are being consumed at a large rate. Therefore, we should conserve the energy sources. Hence, we should look for alternate sources of energy.
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संबंधित प्रश्न
State two important uses of natural gas
State one important use of CNG these days.
Write a short note on the pollution caused by burning fossil fuels.
LPG consists mainly of:
(a) butane
(b) ethane
(c) butanone
(d) methane
Describe the construction and working of a biogas plant with the help of a labelled diagram.
Which of the following is not an example of a biomass energy source?
(a) wood
(b) biogas
(c) atomic energy
(d) cow-dung
What type of nuclear reaction is responsible for the liberation of energy:
in the sun?
Give an account of the use of solar 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 |
