Answer: D) Flat area with a large number of plants
The roots of the plants hold in the soil, which prevents/reduces erosion.
The steeper slope means gravity pulls down the soil material faster, since there is less ground in the way to hold it up, so to speak. So flatter areas are less prone to erosion compared to steeper areas.
So that's why overall, flatter areas with lots of plants would have the least erosion.
UW is a diameter.
(a). Angle UVX = 23 degrees
(b). Angle UWV = 23 degrees
I believe your answer would be about 248 visitors.
Hope this was helpful
The total angle inside the U-shaped is 180 degree.
110 + (8x-10) = 180
8x-10 = 70
8x = 80
x = 10