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प्रश्न
What is meant by Rock Cycle?
थोडक्यात उत्तर
उत्तर
The earth is said to be 4700 million years old and the rocks came into existence 3400 years ago. Since then these rocks have undergone various changes by which multiple transformation took place within the rocks. This continuous process of transformation of old rocks into new rocks is known as rock cycle.
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Rock Cycle
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