If 27.72 mL of 0.1160 M KMnO4 was added to the solution to reach the end point, what mass of FeCl2 was in the sample

What role does weathering have in shaping earth’s surface? a) it allows sediments to fall out of a medium. b) it sediments settle on a new surface. c) it breaks down older material into sediments. d) it transports sediments to a different location. will give brainliest, answer quickly.