Which examples describe some uses for gemstones?

What are some possible short and long term medical concerns for crew members on longer space exploration trips

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?

Which is the most likely reason the writer of the play pygmalion chose to change the character of galatea from a statue to working-class woman?