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प्रश्न
Fill in the following blank with suitable word:
Tidal waves build up and recede ........... a day.
उत्तर
Tidal waves build up and recede twice a day.
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संबंधित प्रश्न
Name two sources of energy that you think are renewable. Give reason for your choice.
Explain why, natural gas is considered to be a good fuel.
Why is LPG considered a good fuel?
The natural gas consists mainly of:
(a) methane
(b) ethane
(c) propane
(d) butane
LPG consists mainly of:
(a) butane
(b) ethane
(c) butanone
(d) methane
Compare and contrast biomass and hydroelectricity as sources of 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
__________ are examples of renewable energy resources.
Which among the following is the non-renewable resources?
Write True/False against the following statement.
Resources which are present in unlimited quantity in nature are called exhaustible natural resources.
