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प्रश्न
Coal reserves are said to be enough to last for another hundred years. Do you think we need to worry in such case? Why or why not?
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उत्तर
Yes, the known resources of coal will last only for about 100 years. Once the present stock of coal present in the earth gets exhausted, no new supplies of these fossil fuels will be available to us in the near future because it take millions of years to convert the dead organisms into fossil fuels in nature.
So, coal should be used with care and caution and not wasted at all.
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संबंधित प्रश्न
Fossil fuels are ______, ______ and ______.
What are the different types of coal?
Explain the following.
Petrol, diesel, and coal are fossil fuels.
Which substance is formed by the carbonisation of dead vegetation?
Write True/False against the following statement.
Under high temperature and pressure, dead plants get slowly converted to coal.
Which one among the following is an extremely strong but lightweight material is used in mountain bikes and tennis rackets?
______ coal is black and dull coal.
Activated carbon, used in filters for water and air purification and in ______ machines is obtained from coal.
Coke is used in the preparation of dyes, explosives, paints synthetic fibers, and pesticides.
What are the uses of coal?
