programed instructional material: depletion of fossil fuels
TRANSCRIPT
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Topic: Depletion of fossil fuelsClass: 7thAge: 12Medium: English
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Programmed Instructional material
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Objectives
At the end of this module you will be able to-1. Know about the formation of fossil fuels.2. Know bout the cause of air pollution.3. Know how fossil fuels are depleting on earth.
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DEPLETION OF FOSSIL FUELSFossil fuels include both coal and petroleum. These
substances were formed beneath the earth’s crust over a period lasting millions of years. The consumption of these fuels has been increasing at an alarming fast rate even though their supply is strictly limited and there is no chance of their being recycled like some metals. The situation is most critical in respect of reserves of petroleum and natural gas. There is an urgent need for conservation of coal and petroleum along with development of alternative energy resources.
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If countries like India and China too decide to have pattern of fuel consumption similar to that as prevalent in developed countries, there would be an energy crunch very soon. The consumption of fossil fuels has also been adding to air pollution. Use of fossil fuels needs to be restrained for this one additional reason. When fossil fuels are depleted agricultural production will revert to the pre-industrial level, and there will be insufficient bulk transportation for distribution of its products.
Let’s answer some questions
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Q.1: Fossil fuels were formed beneath the _________ over a period lasting millions of years.
-Stones
-Trees
-Earth’s crust
-None of the above
B
C
D
A
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Hint!
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Hint!
The outer Most layer of the earth
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Q.2:Which one of the following is a fossil fuel?
-Granite
-Chlorofluorocarbons
-Coal
-None of the above
B
C
D
A
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Hint!
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Hint!
A natural dark brown to black graphite like material used as a fuel
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Q.3: Consumption of fossil fuels has also been adding to _______________.
-Land pollution
-Noise pollution
-Air pollution
-Water pollution
B
C
D
A
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we breathe it in
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Q.4:These fossil fuels have been formed over a period lasting _________ of years.
-Few
-Thousands
-Millions
-Billions
B
C
D
A
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It comes after Hundred Thousand in International place value chart
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Q.5:When fossil fuels are depleted ________ production will revert to the pre- industrial level.
-Mass
-Batch
-Agriculture
-Job
B
C
D
A
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The science or practice of farming
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Congratulations you have Scored 50 marks!