Multiple choice general knowledge science & technology

What is the average temperature of universe?

  1. 2.5 K

  2. 2000K

  3. 0 K

  4. 300 K
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The universe's average temperature is about 2.7 K (-270.5°C), measured from cosmic microwave background radiation. This is the remnant heat from the Big Bang that fills all of space. Option A (2.5 K) is closest to this value, while 0 K is absolute zero and 300 K is room temperature.

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