A geolgist is studying a new soil profile. In analyzing the profile, she finds that the topsoil is rich in organic material. Sh concludes that this soil would be great for growing crops. What materials combined to form the topsoil?

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

answer: c

explanation:

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying