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प्रश्न
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Keenrose is a fuel used in jet crafts.
उत्तर
Kerosene is a fuel used in jet crafts.
संबंधित प्रश्न
Name the petroleum product used for surfacing of roads.
Process of separation of different constituents from petroleum is called ______.
Name two fossil fuels.
Name a clean gaseous fuel other than LPG and natural gas.
Which of the following is not a natural resource?
(a) soil
(b) water
(c) electricity
(d) natural gas
Which of the following combination of terms has no fossil fuel?
(a) wind, ocean, coke
(b) kerosene, tide, wind
(c) wood, wind, sun
(d) petrol, wood, sun
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?
Write an answer to the following question in your own words.
Make a list of the components we obtain from mineral oil.
What measures would you take to conserve electricity in your house?
Petroleum was formed from organisms
You are provided with a mixture of petroleum and water. Can you suggest a method to separate the two?
Fill in the blanks in the following sentence.
Petroleum, ______ and ______ are fossil fuels.
Excessive burning of fossil fuels is a major cause of ______.
We read in newspapers that burning of fuels is a major cause of global warming. Explain why.
Write some important uses of the various constituents of petroleum.
Give reason for the following:
Petroleum is considered a harmful source of energy.
