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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
Compare and contrast fossil fuels and the Sun as direct sources of energy
"The calorific value of cooking gas (LPG) is 50 kJ/g". What does it mean?
"The ignition temperature of a fuel is 80°C". What does this mean?
State one important use of CNG these days.
Explain why, natural gas is considered to be a good fuel.
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 are fossil fuels? Give three examples of fossil fuels.
Coal cannot be converted into one of the following forms of energy. This is:
(a) coal gas
(b) electricity
(c) oil
(d) charcoal
What is the function of anaerobic micro-organisms such as anaerobic bacteria in a biogas plant?
The fuel which is not obtained from biomass is:
(a) firewood
(b) cow-dung cakes
(c) coke
(d) charcoal
What type of nuclear reaction is responsible for the liberation of energy:
in the sun?
Which of the following is ultimately not derived from the sun's energy (or solar energy)?
(a) wind energy
(b) nuclear energy
(c) biomass energy
(d) ocean thermal energy
You have three unlabelled test tubes containing ethanol, ethanoic acid and soap solution. Explain the method you would use to identify the compounds in different test tubes by chemical tests using litmus paper and sodium metal.
Fill in the blank
Coal, petroleum, and natural gas are _________fuels.
Can you tell?
Why should we save energy?
In a hydro power plant ______.
What is non-renewable resources?
Why is there a need for harnessing non-conventional sources of energy? How can energy be harnessed from the sea in different ways?
Write True/False against the following statement.
Oxygen in air is an exhaustible natural resource.
Fill in the blanks and complete the story.
About 300 million years ago, the earth had dense ______ in low lying wetland areas. Due to natural processes like ______, these forests got buried under the ______. As more ______ deposited over them, they were compressed. The ______ also rose as they sank deeper and deeper. Under high ______ and high ______, dead plants got slowly converted into coal.
