What are the rules that determine the type of ion an elements atom will form

Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space