Which example is a closed system?(1 point)
Responses
a sealed jar of salad dressing
a sealed jar of salad dressing
the human body
the human body
a bowl of punch at a gathering
a bowl of punch at a gathering
the atmosphere of a planet
Responses
a sealed jar of salad dressing
a sealed jar of salad dressing
the human body
the human body
a bowl of punch at a gathering
a bowl of punch at a gathering
the atmosphere of a planet