Answer:
gases.
Explanation:
gases have the highest volume. if you compress (increase pressure) a gas, the volume decreases and it will take up less space as a liquid, and if you compress more, the liquid will become a solid.
additionally info: this is generally true, but as you get into more difficult subjects, this rule does not hold. for example, some substances cannot obtain a certain phase of matter when they are a certain temperature and or pressure. but that could be way more out of this questions league.
I'm not sure about the first part but the second part (maybe because its an important part of all organic matter?) but they chose carbon-12 because amu's are 1/12 of carbon's mass.
Answer:
the floor is clean and the soap is dirty. lol
Velocity = displacement (distance)/time
v=80m/4s
v=20m/s
velocity = 20 meters per second
It travels fastest through solids.
