Seudónimo Seudónimo
  • 31-08-2016
  • Physics
contestada

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

Respuesta :

a1s2d3f4g5
a1s2d3f4g5 a1s2d3f4g5
  • 02-11-2016
the answer will be B
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