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प्रश्न
Name two forms of sea energy.
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उत्तर
Two forms of sea energy are:
- Tidal energy
- Wave energy
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संबंधित प्रश्न
What is the main constituent of:
(1) petroleum gas?
(2) natural gas?
State one important use of CNG these days.
Suggest a safe and efficient method for the disposal of biowastes and sewage materials. How is this method advantageous to us?
One of the following is not required in the formation of biogas in a biogas plant. This is:
(a) cow-dung
(b) water
(c) oxygen
(d) anaerobic bacteria
What type of nuclear reaction is responsible for the liberation of energy:
in the sun?
The fossil fuel whose known reserves in the earth are expected to last for the minimum period is:
(a) coal
(b) uranium
(c) petroleum
(d) natural gas
An energy efficient devices for producing light is:
(a) DLF
(b) CFL
(c) FCL
(d) LPG
State whether the following is True or False.
Renewable energy resources have limited supply in nature.
Why are fossil fuels called non-renewable sources of energy?
Some natural resources are given below. Classify them into the exhaustible and inexhaustible natural resources.
| air, coal, natural gas, sunlight, petroleum, minerals, forests, oxygen |
