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प्रश्न
Coal is formed from the remains of
विकल्प
vegetation only
animals only
both vegetation and animals
neither vegetation nor animals
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उत्तर
vegetation only
Explanation:
Coal is formed by the decomposition of large land plants and trees buried under the earth about 300 million years ago.
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संबंधित प्रश्न
Fossil fuels are ______, ______ and ______.
Fossil fuels can be made in the laboratory.
Describe characteristics of coke.
Anthracite is known as the highest-grade coal. Give reason.
Explain the different types of coal.
Coal tar is a black, thick ______ with an ______ smell.
The slow process of conversion of dead vegetation into coal is called ______.
The black thick liquid with ______ smell is known as coal tar.
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?
What is deep mining?
