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प्रश्न
State the main difference between the renewable and non-renewable sources of energy.
उत्तर
Renewable sources:
- These are the sources from which energy can be obtained continuously over a long period of time.
- They are non-conventional sources.
- These are the natural sources that will never get exhausted.
- These sources can be regenerated.
- Examples: Solar energy, wind energy, hydro-energy, geothermal energy, and nuclear energy.
Non-renewable sources:
- These are the sources from which energy can not be continuously obtained over a long period of time.
- They are conventional sources.
- These are natural sources, which would soon deplete.
- These sources cannot be regenerated.
- Examples: Coal, petroleum, and natural gas.
संबंधित प्रश्न
Which of the following is not a renewable source of energy?
(a) wind
(b) flowing water
(c) fossil fuels
(d) fuel wood
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.
What is the main constituent of:
(1) petroleum gas?
(2) natural gas?
Describe how fossil fuels were formed.
The natural gas consists mainly of:
(a) methane
(b) ethane
(c) propane
(d) butane
Which of the following is needed for the formation of biogas from cow-dung and which not?
Water, Oxygen
Fill in the following blank with suitable word:
Tidal waves build up and recede ........... a day.
State whether the following is True or False.
The Sardar Sarovar Dam is built on the river Narmada.
Explain why is it no wise to regard wood as a renewable sources of energy.
Write True/False against the following statement.
Resources which are present in unlimited quantity in nature are called exhaustible natural resources.
