Question

which of these definitions best describes absolute zero? the temperature of the universe at any given time the coldest temperature that humans can survive in the coldest temperature possible - 0 degrees celsius the coldest temperature possible - 0 kelvin

Explanation:

Absolute zero is the lowest - attainable temperature, defined as 0 Kelvin. At this temperature, all molecular motion theoretically stops. 0 degrees Celsius is the freezing point of water and not absolute zero. The temperature of the universe at any given time is not absolute zero, and the coldest temperature humans can survive in is much higher than absolute zero.

Answer:

the coldest temperature possible - 0 Kelvin