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प्रश्न
What are non-renewable resources of energy? Give two examples of such resources.
उत्तर
Non-renewable resources of energy are those energy resources that are consumed at a rate faster than the rate at which they are replenished. Two examples of non-renewable resources are coal and petroleum.
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संबंधित प्रश्न
"The calorific value of cooking gas (LPG) is 50 kJ/g". What does it mean?
Which of the following fuels has the highest calorific value?
(a) natural gas
(b) methane gas
(c) hydrogen gas
(d) biogas
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
Compare and contrast biomass and hydroelectricity as sources of energy.
Suggest a safe and efficient method for the disposal of biowastes and sewage materials. How is this method advantageous to us?
Fill in the blank
__________ are examples of renewable energy resources.
Can you tell?
Why should we save energy?
Make a list of conventional and non-conventional sources of energy. Give a brief description of harnessing one nonconventional source of energy.
Write True/False against the following statement.
Resources which are present in unlimited quantity in nature are called exhaustible natural resources.
Why petrol is exhaustible natural resource whereas sunlight is not? Explain.
