Answer:
geologist is a scientist who studies the solid, liquid and gaseous matter that constitutes the Earth and other terrestrial planets, as well as the processes that shape them.
C --> He collected a vast amount of data and observations that fueled later theories
A) A mixture because they can be taken apart without changing the physical form
Answer:ionic bond
Explanation: Ionic bonds form when electrons are transferred, covalent bonds form when electrons are shared. polar covalent bonds form when electrons are shared unequally (basically).