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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
Describe how coal is formed from dead vegetation. What is this process called?
Fossil fuels are ______, ______ and ______.
Fossil fuels can be made in the laboratory.
Explain the following.
Petrol, diesel, and coal are fossil fuels.
Coal is formed from the remains of
Naphthalene balls are obtained from coal tar and are used as
The slow process of conversion of dead vegetation into coal is called ______.
Write True/False against the following statement.
Under high temperature and pressure, dead plants get slowly converted to coal.
Activated carbon, used in filters for water and air purification and in ______ machines is obtained from coal.
Coal is also known as black diamond owing to its precious nature.
