Final answer:
Liquid nitrogen slows down molecules and causes them to get closer together.
Step-by-step explanation:
Liquid nitrogen is a substance that causes the molecules of other substances to slow down. When it comes into contact with a substance, it absorbs heat from the surroundings and boils, rapidly cooling down the molecules. As a result, the molecules slow down and move closer together. This is because the decrease in temperature reduces the average kinetic energy of the molecules, leading to a decrease in their speed and a decrease in the distance between them.
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