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प्रश्न
State whether the following is True or False.
Coal takes millions of years to form.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
On what basis would you classify energy sources as
(a) renewable and non-renewable?
(b) exhaustible and inexhaustible?
Are the options given in (a) and (b) the same?
Define ignition temperature of a fuel.
A non-renewable source of energy is:
(a) wood
(b) alcohol
(c) hydrogen gas
(d) natural gas
A good fuel is one which possesses:
(a) high calorific value and low ignition temperature
(b) high calorific value and high ignition temperature
(c) high calorific value and moderate ignition temperature
(d) low calorific value and moderate ignition temperature
The natural gas consists mainly of:
(a) methane
(b) ethane
(c) propane
(d) butane
A substance X is added to LPG cylinders while filling so as to make the detection of leakage of LPG from the cylinder easy.
How does substance X make the detection of leakage of LPG easy?
Name the original source of wind energy.
Which of the following is needed for the formation of biogas from cow-dung and which not?
Water, Oxygen
Name the clean fuel which can be obtained from cow-dung.
Why is biogas considered an ideal fuel for domestic use?
Which of the following is ultimately not derived from the sun's energy (or solar energy)?
(a) wind energy
(b) nuclear energy
(c) biomass energy
(d) ocean thermal energy
State whether the following is True or False.
The Sardar Sarovar Dam is built on the river Narmada.
Can you tell?
What are the non-conventional energy resources?
Who is the odd one out?
Why are fossil fuels called non-renewable sources of energy?
Why is charcoal considered better fuel than wood?
Tidal energy is ______ type of energy.
In a hydro power plant ______.
Choose the incorrect statement regarding wind power
What are the environmental consequences of using fossil fuels? Suggest the steps to minimise the pollution caused by various sources of energy including non-conventional sources of energy.
