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प्रश्न
A hollow impression left in rock after the body of an organism decays is called a:
पर्याय
Actual remain
Mould
Cast
Petrified fossil
MCQ
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उत्तर
A mould is the hollow impression left after the body decays, such as a shell imprint in rock. A cast is the solid copy formed when such a mould is filled with minerals.
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