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प्रश्न
Write True/False against the following statement.
Oxygen in air is an exhaustible natural resource.
विकल्प
True
False
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उत्तर
This statement is False.
Explanation:
Oxygen in air is an inexhaustible natural resource because oxygen can be used again and again.
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संबंधित प्रश्न
What are the disadvantages of fossil fuels?
Classify the following
Coal, Wind, Tides, Petroleum,Wood, Natural gas
What is the basis of above classification?
A good fuel is one which possesses:
(a) high calorific value and low ignition temperature
(b) high calorific value and high ignition temperature
(c) high calorific value and moderate ignition temperature
(d) low calorific value and moderate ignition temperature
Which of the following is not produced by the burning of fossil fuels?
(a) nitrogen oxides
(b) sulphur oxides
(c) sodium oxides
(d) carbon oxides
The aviation fuel which is used in the engines of jet aeroplanes is:
(a) diesel
(b) kerosene
(c) petrol
(d) CNG
Fill in the following blank with suitable word:
Biomass is another form in which ........... energy manifests itself.
One of the following is not required in the formation of biogas in a biogas plant. This is:
(a) cow-dung
(b) water
(c) oxygen
(d) anaerobic bacteria
Can you tell?
What is ‘green energy’?
Name two forms of sea energy.
Coal is one of the ______ used to cook food.
