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प्रश्न
Who is the odd one out?
विकल्प
Leaving the fan on in a vacant room
Leaving the TV on while working
Using AC during winter
Putting off the light when going out
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उत्तर
Putting off the light when going out
Explanation:
Putting off the light when going out is the odd one out as it is one of the measures of saving energy. The rest involves waste of energy.
संबंधित प्रश्न
"The calorific value of cooking gas (LPG) is 50 kJ/g". What does it mean?
State any four characteristics of a good source of energy.
Classify the following
Coal, Wind, Tides, Petroleum,Wood, Natural gas
What is the basis of above classification?
Which of the following fuels has the highest calorific value?
(a) natural gas
(b) methane gas
(c) hydrogen gas
(d) biogas
Name any four fractions obtained from petroleum which are used as fuels.
State two important uses of natural gas
Which fossil fuels were formed by the buried remains of small plants and animals?
Which of the following is needed for the formation of biogas from cow-dung and which not?
Water, Oxygen
Who is the odd one out?
Which of the following is a pair of exhaustible natural resources?
