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प्रश्न
State whether the following is True or False.
Renewable energy resources have limited supply in nature.
विकल्प
True
False
उत्तर
False
Correct Statement: Renewable energy resources have an unlimited supply in nature.
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संबंधित प्रश्न
What is meant by a non-renewable source of energy? Give two examples of non-renewable source of energy.
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.
What is the main constituent of:
(1) petroleum gas?
(2) natural gas?
State two important uses of natural gas
The product of petroleum used to drive heavy vehicles like trucks is:
(a) petrol
(b) kerosene
(c) diesel
(d) carbon oxide
LPG consists mainly of:
(a) butane
(b) ethane
(c) butanone
(d) methane
The pollution of air caused by burning petroleum fuels (like petrol and diesel) in vehicles can be controlled by fitting a device X in the exhaust system of vehicles.
Name the device
The pollution of air caused by burning petroleum fuels (like petrol and diesel) in vehicles can be controlled by fitting a device X in the exhaust system of vehicles.
How does this device help in controlling air pollution?
What type of nuclear reaction is responsible for the liberation of energy:
in the sun?
Which produced of the nuclear fission of uranium-235 is utilised to cause further fission of its nuclei?
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
Why is the use of wood as a fuel not advisable although wood is a renewable source of energy?
Fill in the blank
_______is the coal with the highest percentage of coal.
Who is the odd one out?
Explain why is it no wise to regard wood as a renewable sources of energy.
Write about Renewable resources.
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
Fill in the blanks in the following sentence.
Coal is one of the ______ used to cook food.
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 |
