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प्रश्न
Fill in the blank
__________ are examples of renewable energy resources.
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उत्तर
Sun, water, wind are examples of renewable energy resources.
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संबंधित प्रश्न
Name two energy sources that you would consider to be renewable. Give reasons for your choices.
"The ignition temperature of a fuel is 80°C". What does this mean?
Fill in the following blank with a suitable word:
The amount of heat produce by burning a unit mass of a fuel completely is known as its ............ value.
State any four characteristics of a good source of energy.
Name two sources of energy which you consider to be non-renewable. Give reason for your choice.
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.
Name the constituents of biogas.
Which of the following is needed for the formation of biogas from cow-dung and which not?
Water, Oxygen
Compare and contrast biomass and hydroelectricity as sources of energy.
What are the raw materials used for making biogas?
Most of the sources of energy that we sue represent stored solar energy. Which of the following is not ultimately derived from the sun's energy?
(a) wind energy
(b) geothermal energy
(c) fossil fuels
(d) biomass
The fuel which is not obtained from biomass is:
(a) firewood
(b) cow-dung cakes
(c) coke
(d) charcoal
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
What type of nuclear reaction is responsible for the liberation of energy:
in the sun?
What is the main difference between renewable and non-renewable energy resources?
Who is the odd one out?
Acid rain happens because ______.
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.
Imagine that all the exhaustible natural resources are exhausted by human activities. Do you think survival of living beings would be possible? If yes, why? If not, why not?
