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प्रश्न
What are renewable energy resources?
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उत्तर
Renewable energy resources are those that come from natural sources and are naturally replenished. These include solar energy (sunlight), wind energy from windmill (wind), hydroelectricity (rain), tidal energy from waves (tides), and geothermal energy (energy from the heat of the earth).
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संबंधित प्रश्न
Why are we looking at alternate sources of energy?
Name two energy sources that you would consider to be renewable. Give reasons for your choices.
Give the names of two energy sources that you would consider to be exhaustible. Give reasons for your choices.
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.
Write the full forms of CNG and LPG.
State two important uses of natural gas
Which fossil fuels were formed by the buried remains of small plants and animals?
The energy in petrol originally came from the sun. Explain how it got into petrol.
Which of the following is not an example of a biomass energy source?
(a) wood
(b) biogas
(c) atomic energy
(d) cow-dung
What type of nuclear reaction is responsible for the liberation of energy:
in a nuclear reactor?
Why is the use of wood as a fuel not advisable although wood is a renewable source of energy?
Answer the following question.
Write the name of the main constituent of Biogas. Also, state its percentage.
Fill in the blank
Coal, petroleum, and natural gas are _________fuels.
State whether the following is True or False.
Coal and petroleum are renewable energy resources.
State whether the following is True or False.
Coal takes millions of years to form.
State whether the following is True or False.
The Sardar Sarovar Dam is built on the river Narmada.
Can you tell?
Why should we save energy?
Choose the incorrect statement regarding wind power
Write True/False against the following statement.
Resources which are present in unlimited quantity in nature are called exhaustible natural resources.
