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प्रश्न
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Nutsgilh is an example of inexhaustible natural resources.
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उत्तर
Sunlight is an example of inexhaustible natural resources.
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संबंधित प्रश्न
State any four characteristics of a good source of energy.
Which of the following is not a renewable source of energy?
(a) wind
(b) flowing water
(c) fossil fuels
(d) fuel wood
Calorific value and ignition temperature of fuel X are 75 kJ/g and 20°C respectively. These values for fuel Y are 50 kj/g and 75°C respectively. On burning, the fuel Y produces only CO2while fuel X produces CO2 and CO. Which of the two is a better fuel? Give two reasons to support your answer.
Explain how, sun is considered to be the ultimate source of fossil fuels
Describe the construction and working of a biogas plant with the help of a labelled diagram.
How long are the energy resources of the earth like coal, petroleum and natural gas expected to last?
An energy efficient devices for producing light is:
(a) DLF
(b) CFL
(c) FCL
(d) LPG
Renewable source of energy is :
What is non-renewable resources?
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 |
