Everything, including liquids, are made up of tiny the particles move around and as they do this they with the they come into contact with. the force of the particles hitting a surface causes pressure comes from all

direction particles surfaces colide

pressure

It was ernest rutherford

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

The answer is probably c. xylem