Which best explains why a wood-burning fireplace represents an open system?
a. because...
Physics, 29.12.2019 05:31 kleighlamb4901
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
Answers: 3
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