Which best explains why a wood-burning fireplace represents an open system?
A. because they are not all made of brick
B. because a fire requires oxygen from the atmosphere to burn
C. because they can be used for cooking
D. because the ashes have to be swept away
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Home » Physics » Which best explains why a wood-burning fireplace represents an open system? A. because they are not all made of brick B. because a fire requires oxygen from the atmosphere to burn C. because they can be used for cooking D.