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प्रश्न
Kerosene is not a fossil fuel.
विकल्प
True
False
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उत्तर
This statement is false.
Explanation:
Kerosene is a fossil fuel made from petroleum. It was formed over millions of years from decomposed organic matter from ancient species. Kerosene is used in stoves, lamps, and jet aircraft.
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संबंधित प्रश्न
Name the petroleum product used for surfacing of roads.
Process of separation of different constituents from petroleum is called ______.
Explain the process of formation of petroleum.
Which fossil fuel is conserved when we save on electricity?
Choose one term from the following which include all others :
coal, natural gas, fossil fuels, petroleum
Although coal and petroleum are produced by the degradation of biomass, even then we need to conserve them. Why?
A man bought a device X which could cook pulses, vegetables and rice without using any fuel like wood, coal, kerosene or LPG, etc. This device did not work at night. It also took a lot of time for cooking.
(a) Name the device X.
(b) What is the source of energy which cooks food in this device?
(c) What is the name of the process which traps energy in this device?
(d) State one advantage (other than saving on fuel) or using such a device for cooking food.
A person buys two electrical devices P and Q for lighting purposes in his house. The device P consumes only 5 units of electricity in a month but device Q consumes 15 units of electricity in a month when used for the same number of hours daily. The device Q wastes a lot of electricity by radiating energy C but P does not do so.
(a) What type of device is (i) P, and (ii) Q?
(b) Name one component which is present in Q but not in P.
(c) Name the energy C.
(d) Which device is more energy efficient : P or Q?
(e) Which fossil fuel is most likely to be conserved if all of us switch over to devices like P?
List the products of combustion of fossil fuels. What are their adverse effects on the environment?
You are provided with a mixture of petroleum and water. Can you suggest a method to separate the two?
