A sealed jar of salad dressing is an example of a closed system. In a closed system, matter does not enter or leave the system, although energy can be exchanged. The other options, like the atmosphere of a planet and the human body, allow for the exchange of matter (gases, nutrients, etc.) with their surroundings. A bowl of punch at a gathering also allows for the exchange of matter, such as when people take punch or add ingredients.
Which example is a closed system?(1 point) Responses the atmosphere of a planet the atmosphere of a planet the human body the human body 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
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