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प्रश्न
While discussing about coal and petroleum a teacher told his students about PCRA's (Petroleum Conservation Research Association) guidelines to save the fossil fuels while driving vehicles. Deepa was going to her school with her mother who was driving car. At the traffic signal, when the light was red, Deepa suggested her mother to switch of the engine.
After reading the above passage, answer the following questions :
(a) Fossil fuels are natural resources, then why do we need to conserve them?
(b) List any two ways of saving the fossil fuels.
(c) State two values exhibited to Deepa.
उत्तर
(a) Fossil fluels are limited natural resources. It is estimated that if we continue to consume fossil fuels at the current rate, then all the petroleum reserves will get exhausted in the next 40 years. Therefore, it is very important that adequate measures are taken to conserve these valuable natural resources.
(b) i-Taking a bus, using your personal vehicle or walking/cycling.
ii- Switch of your vehicle on traffic signal.
(c) i- conservation of natural fuel
ii- prevention of air pollution
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संबंधित प्रश्न
Which fossil fuel is conserved when we save on electricity?
Fill in the following blank with suitable word :
When a fuel burns in an insufficient supply of air, then some poisonous gas called ......... is also produced.
Although coal and petroleum are produced by the degradation of biomass, even then we need to conserve them. Why?
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?
What are fossil fuels?
Fill in the blanks in the following sentence.
Petroleum, ______ and ______ are fossil fuels.
Coal and petroleum are formed from the dead remains of organisms and are known as ______.
Excessive burning of fossil fuels is a major cause of ______.
Write some important uses of the various constituents of petroleum.
