PDF chapter test TRY NOW
Answer the following questions:
1. Name the petroleum product used for surfacing of roads.
is the petroleum product used for surfacing of roads.
2. Describe how coal is formed from dead vegetation. What is this process called?
Millions of years ago, trees, plants, ferns, and forests were buried below the rocks, soil, and sand due to processes like flooding, earthquake, etc. Slowly, as more soil was deposited over them, they were compressed. This led to the conditions of . These conditions, along with the anaerobic conditions, turned the carbon-enriched organic matter of wood into coal. This slow process of conversion of wood into coal is called .
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