Question 21 1 pts Consider this image. What is the approximate width of the floodplain in feet? a.s.l. - Above Sea Level 25007 Genesee River Elevation (ft a.s.l.) 6000 2000 4000 Distance (ft) 2500 ft 2000 ft 4000 ft 3500 ft 3000 ft Question 18 1 pts A walk from Route 63 to Main Street in Geneseo along Court Street is 0.6 miles long. Over this 0.6 miles one gains 200 ft in elevation. What is the gradient of Court Street? 333 mile/ft 0.003 ft/mile 333 ft/mile 0.003 mile/ft Question 19 1 pts In the recurrence interval equation, what does m stand for? size of the flood total number of events on record year of the flood recurrence interval rank of the flood