Some people wish that we lived in a recollapsing universe that would eventually stop expanding and start contracting. for this to be the case, which of the following would have to be true (based on current (a) dark energy is the dominant form of energy in the cosmos. (b) dark energy does not exist and there is much more dark matter than we are aware of to date. (c) neither dark energy nor dark matter really exist. (d) dark energy exists but dark matter does not.

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.