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Trace fossils; cast means ______?

فوسلز کا سراغ لگانا؛ کاسٹ کا مطلب کیا ہے؟
    • Answer: Inside filling of hollow cavity
Explanation
  • A cast is formed when the hollow cavity of a mold is filled with minerals or sediment.
  • It creates a positive replica of the organism's shape.

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