If I have an A+ in my class then get an F on a quiz how will that affect my grade?

After examining the evidence at a site, a geologist thinks that a river could have once flowed through the area. what evidence would support this conclusion? a) the site is a vast, open grassland. b) a high level of tectonic activity is present. c) this location contains igneous rocks everywhere. d) many sedimentary rocks with fossils have been found.