They determine the north and south ends
Answer:
Researchers initially built up the geologic time scale by considering rock layers and record fossils around the world. With this data, researchers put in Earth's stone layers in request by relative age. Afterward, radioactive dating decided the supreme age of the divisions in the geologic time scale.
Answer:
Mineral crystals that form when magma cools slowly are larger than crystals that form when lava cools rapidly. Minerals form when rocks are heated enough that atoms of different elements can move around and join into different molecules.
I Think The answer is a or c Try Those options if There wrong I’ll fix Them for you To be sure you get The right answer Message Me if I’m wrong
A clear jelly like material that fills the cells is the cytoplasm cyto=cell plasm=goo your welcome
