Fill in the blanks and complete the story.
About 300 million years ago, the earth had dense ………… in low lying wetland areas. Due to natural processes like………….. these forests got buried under the…………. As more …………….. deposited over them, they were compressed. The ………. also rose as they sank deeper and deeper. Under high …………….. and high …………… , dead plants got slowly converted into coal.

AcademicChemistryNCERTClass 8

About 300 million years ago the earth had dense forests in low-lying wetland areas. Due to natural processes, like floods, these forests got buried under the soil. As more soil was deposited over them, they were compressed. The temperature also rose as they sank deeper and deeper. Under high pressure and high temperature, dead plants got slowly converted into coal.
raja
Updated on 10-Oct-2022 13:25:36

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