Answer:
An underground cavern collapsed
Explanation:
I did research
It will be melt in the layer of earth called mantle because mantle has a higher temperature than crust. and as it melt, it will be called magma.
Based on the options given, the most likely answer to this query is
A. Some animals exhibit similar stages in embryonic development. Embryonic development is where a fertilized egg undergoes similar development with other animals.
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