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प्रश्न
State whether the following is True or False.
Renewable energy resources have limited supply in nature.
पर्याय
True
False
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उत्तर
False
Correct Statement: Renewable energy resources have an unlimited supply in nature.
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संबंधित प्रश्न
Give the names of two energy sources that you would consider to be exhaustible. Give reasons for your choices.
Classify the following into renewable and non-renewable sources of energy:
Coal, Wind, Tides, Petroleum,Wood, Natural gas
A non-renewable source of energy is:
(a) wood
(b) alcohol
(c) hydrogen gas
(d) natural gas
Name the component which is found in natural gas well as in biogas.
State two important uses of natural gas
State one important use of CNG these days.
Why is the leakage of LPG detected easily although it is odourless? State the steps to be taken in case its leakage is detected in the kitchen.
What should be the minimum wind speed for the satisfactory working of a wind-powered electric generator?
Name the constituents of biogas.
Which of the following is needed for the formation of biogas from cow-dung and which not?
Water, Oxygen
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
The source of energy of the sun is:
(a) conversion of hydrogen gas into helium
(b) conversion of carbon fuel into carbon dioxide
(c) burning of hydrogen gas present in the sun
(d) disintegration of uranium into barium and krypton
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
What are non-renewable resources of energy? Give two examples of such resources.
Fill in the blank
__________ are examples of renewable energy resources.
What are fossil fuels?
Tidal energy is ______ type of energy.
Higher Order Thinking Skill (HOT)
What are the objectives for replacing non-conventional energy resources from conventional energy 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 |
