1. What are fossils? Why petroleum is called fossil fuel ?
2. Why is the interior of the earth very hot ?
3. Explain the formation of rocks from one form to another.
4. Lime changes into marble. Give reason.
5. What is the earth made up of ?
6. Why is it important to study rocks?
7. Name any 5 minerals that are used in your daily life.
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Because of extreme compression and hardening of the particles of sediment which are deposited by wind, water etc. Limestone is changed into marble. Answer: Because of extreme heat and pressure, limestone undergoes a
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