Question

multiple - choice question
to the best of our knowledge, our universe is a closed system because we are not gaining or losing energy or matter.
false
true
rewatch

Explanation:

A closed system is one that does not exchange matter with its surroundings, but can exchange energy. However, the universe is considered an isolated system as it does not exchange either matter or energy with anything outside (since there is nothing outside). So the statement is false.

Answer:

False