everything is the same but :
5 is definitely C, B is correct locally but not always globally and is on the larger scale of things, a smaller impact than the massive amounts of CO2 that increase temperature
9 is A...the development of larger tissues and parts composed of cells with a nucleus did occur but it had nothing to do with the move to terrestrial environments, this happened after they had already moved to land. the development of a reproductive system that didnt rely on water meant that they didnt have to exist on water margins so that they could reproduce, it meant they could move awa from water, ie, to terrestrial enviros (and B was already occuring anyway, C is just wrong)
11 is def not A. "silica rich" soils = sandy soils. basaltic soils are NOT sandy. sandy soils are our crap soils. the only other viable answer is C...B and D are right but the question is basically "why are they fertile?".
our teacher hung around, head marker of earth, confirmed the answers
i was very happy
hope you all did good, lets give earth a good name lol!