Will reward brainliesttrdgnshfsrhsn hurryr looking at this skier. if ht travels from point a to point b, then turns around and stops at point c, what is her total displacement? question 12 options: 320 m 100 m 180 m 40 m save

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.