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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
Describe how coal is formed from dead vegetation. What is this process called?
Fossil fuels can be made in the laboratory.
Coke is almost pure form of carbon.
Explain why fossil fuels are exhaustible natural resources.
Describe characteristics of coke.
What are the different types of coal?
Anthracite is known as the highest-grade coal. Give reason.
When lignite becomes darker and harder over time ______ coal is formed.
______ is used to make face packs and cosmetics.
What are the uses of coal?
