changes of state are physical changes. they occur when matters absorb or loses energy. processes in which matter changes between liquid and solid states are freezing and melting period processes and which matter change between liquid and gases states are vaporization, evaporation, and condensation
Answer:
Dry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts.
Explanation:
hypothesis can be reject or wrong because it's what somone thinks as a theory also it aslo cannot be proven correctly
and it aslo has to he tested many times
And enzyme is a large protein molecule.
Because it carries a lot of blood to the arteries
