HELPPP WILL MARK BRAINIEST 18. An incident light beam strikes the edge of its medium at an angle of 42°. The beam refracts at an angle of
90?. Now you know that
a. The critical angle of the medium is 42?.
b. If you decrease the incident angle, the refracted beam will exit the medium.
c. If you increase the incident angle, the refracted beam will not exit the medium
d all of the above

Explain what will happen if decomposers were apsent from a forest ecoysystem.

Heterogeneous mixture with larger particles that never settle is

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.