Advertisements
Advertisements
प्रश्न
Fill in the blank
__________ are examples of renewable energy resources.
उत्तर
Sun, water, wind are examples of renewable energy resources.
APPEARS IN
संबंधित प्रश्न
Which fossil fuel formed by the buried remains of large land plants?
LPG consists mainly of:
(a) butane
(b) ethane
(c) butanone
(d) methane
Coal cannot be converted into one of the following forms of energy. This is:
(a) coal gas
(b) electricity
(c) oil
(d) charcoal
Compare the sun and the fossil fuels as the sources of energy.
What are the two ways in which cow-dung can be used as a fuel? Which of them is better and why?
Name the major component of biogas.
The constituent of biogas which makes it an excellent fuel is:
(a) butane
(b) methane
(c) propane
(d) ethane
What type of nuclear reaction is responsible for the liberation of energy:
in the sun?
How long are the energy resources of the earth like coal, petroleum and natural gas expected to last?
What are non-renewable resources of energy? Give two examples of such resources.
Answer the following question.
Write the name of the main constituent of Biogas. Also, state its percentage.
What is the main difference between renewable and non-renewable energy resources?
What do you know about wind energy?
Can you tell?
What is ‘green energy’?
Can you tell?
Why should we maximise the use of non-conventional energy resources?
Which among the following is the non-renewable resources?
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
Some natural resources are given below. Classify them into the exhaustible and inexhaustible natural resources.
| Air | coal | natural gas | sunlight | petroleum | minerals | forests | oxygen |
Why petrol is exhaustible natural resource whereas sunlight is not? Explain.
