Final answer:
The three fundamental dimensions of the universe are length, mass, and time.
Step-by-step explanation:
The three fundamental dimensions of the universe are length, mass, and time.
Length refers to the measurement of a distance between two points, such as the size of an object or the distance between two galaxies in the universe. Mass represents the amount of matter in an object, which determines its gravitational pull. Time is a measure of the duration between events or the progression of events.