Which best explains why a wood-burning fireplace does not represent a closed system? a. because a fire requires oxygen from the atmosphere to burn b. because the ashes have to be swept away c. because they are not all made of brick d. because they can be used for cooking

Ineed this now one scientist feels that the changes in global climatic patterns may be good for the health of the biosphere. another scientist feels that sharp changes in climatic patterns could result in the extinction of the biosphere. which of these is the most likely reason the two scientists gave conflicting opinions on the impact of changes in the global climatic pattern? they do not have enough knowledge on the topic. they did not discuss the issue among themselves. they believe conflicting opinion strengthens science. they study different areas of science and have different scientific focuses.