Advertisements
Advertisements
Question
Why are fossil fuels called non-renewable sources of energy?
Advertisements
Solution
Fossil fuels (coal, petrol, diesel etc.) are exhaustible i.e. if these are once finished can not be regenerated over a reasonable period of time. That is why fossil fuels are called non-renewable sources of energy.
APPEARS IN
RELATED QUESTIONS
What is a source of energy? What are the two main categories of the sources of energy?
State any four characteristics of a good source of energy.
Which of the following fuels has the highest calorific value?
(a) natural gas
(b) methane gas
(c) hydrogen gas
(d) biogas
Calorific value and ignition temperature of fuel X are 75 kJ/g and 20°C respectively. These values for fuel Y are 50 kj/g and 75°C respectively. On burning, the fuel Y produces only CO2while fuel X produces CO2 and CO. Which of the two is a better fuel? Give two reasons to support your answer.
Name any four fractions obtained from petroleum which are used as fuels.
Why is LPG considered a good fuel?
The energy in petrol originally came from the sun. Explain how it got into petrol.
Which of the following sources of energy are not derived from the sun?
Biomass, Wind, Ocean thermal energy, Geothermal energy, Nuclear fuels, Hydroelectricity, Wave energy, Coal, Petroleum, Tidal energy
What is meant by the renewable and non-renewable sources of energy? State two differences between them, giving two examples of each
Write about Renewable resources.
