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प्रश्न
State whether the following is True or False.
The Sardar Sarovar Dam is built on the river Narmada.
विकल्प
True
False
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उत्तर
True
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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.
On what basis would you classify energy sources as
(a) renewable and non-renewable?
(b) exhaustible and inexhaustible?
Are the options given in (a) and (b) the same?
What is the difference between a renewable and a non-renewable source of energy? Explain with examples.
Name two sources of energy that you think are renewable. Give reason for your choice.
A non-renewable source of energy is:
(a) wood
(b) alcohol
(c) hydrogen gas
(d) natural gas
Name any four fractions obtained from petroleum which are used as fuels.
Why is LPG considered a better fuel than coal?
Describe how fossil fuels were formed.
Coal cannot be converted into one of the following forms of energy. This is:
(a) coal gas
(b) electricity
(c) oil
(d) charcoal
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?
Fill in the following blank with suitable word:
Tidal waves build up and recede ........... a day.
What type of nuclear reaction is responsible for the liberation of energy:
in a nuclear reactor?
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.
State whether the following is True or False.
Coal and petroleum are renewable energy resources.
Can you tell?
What is ‘green energy’?
Why should we conserve the non-renewable sources of energy?
Explain why is it no wise to regard wood as a renewable sources of energy.
Name two forms of sea energy.
What are the environmental consequences of using fossil fuels? Suggest the steps to minimise the pollution caused by various sources of energy including non-conventional sources of energy.
Air is a natural resource and cannot be exhausted by human activities. It is known as inexhaustible natural resource. Which of the following is another inexhaustible natural resource?
