I think the answer is a i hope it helps
The branch of chemist is a substance of science and pysical is the land science such as a desert of a forest those are chemist and physical science have a good day :)
Answer:
salt water heterogeneous mixture , pure substance compound,element solut8on
Rip King von like to send love to their family 63-63= von
They can be stopped by a piece of paper.
