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 burried 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.


NCERT Class VIII
Science - Exemplar Problems

Chapter 5. Coal and Petroleum

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Answers

2015-06-11T13:54:15+05:30
Forests, earthquake, earth, soil, land, pressure, temperature.
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