I think the answer is number 4
It will most likely transition to the past in the form of a flashback.
Matter is anything that has mass and takes up space. So, in order to prove that air is matter, we need to prove that air has mass and takes up space. ... The balloons get larger as you put air into them. The only way that air could make them get larger is if air takes up space, so half of our proof is complete.
Explanation: MAKE ME BRAINLEIEST THIS TOOK TIME OFF FROM SCHOOL
