A... the production of breast milk happened afterbirth
If groundwater dissolves the limestone and other minerals in the ground, the surface on top may eventually fall into it, causing a sinkhole.<em> (B)</em>
If some living things do not reproduce this could be considered a defect or a genetic mutation in those people. If we take humans for example, if most humans reproduce and some don't because they cannot (if a guy cannot produce sperm) this doesn't mean that he isn't alive, it just means he was born with a genetic mutation which doesn't allow him to produce sperm needed for reproducing.
I believe the word is loss or lack of income. Hope that helps you.
