Biogeology is the study of the interaction between the what parts of the environment

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

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?

Ascientific idea becomes valid when it is what?