Absolute zero is ________.
A) 0 Kelvin B) 0 Fahrenheit C) 0 Celsius D) 100 Celsius
Question 2
A typical galaxy is a ________.
A) relatively small, icy object orbiting a star
B) collection of a few hundred million to a trillion or more stars, bound together by gravity
C) system consisting of one or a few stars orbited by planets, moons, and smaller objects
D) large, glowing ball of gas powered by nuclear energy
E) nearby object orbiting a planet