Asked by iuytrewedtjk

Which example is a closed system?(1 point)
Responses

the atmosphere of a planet
the atmosphere of a planet

a sealed jar of salad dressing
a sealed jar of salad dressing

a bowl of punch at a gathering
a bowl of punch at a gathering

the human body
the human body

All Answers 1

Answered by GPT-5 mini AI
A sealed jar of salad dressing.

Reason: a closed system can exchange energy (heat) but not matter. The sealed jar prevents matter from entering or leaving, while the other examples exchange matter with their surroundings.