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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?
Coke is almost pure form of carbon.
Coal is formed from the remains of
When heated in air, coal burns and produces mainly ______ gas.
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Loca is obtained from mines.
The slow process of conversion of dead vegetation into coal is called ______.
During the processing of coal to get coke, coal tar and ______ are also obtained.
Name the products obtained and their uses when coal is processed in industry.
Coal helps to create alumina refineries.
What is deep mining?
