A negative consequence of this practice is that it takes away Habitat
Harbors and inlets are formed where parts of a coastline erode faster than other parts. As the area continues to erode, water can move further inland, which forms a harbor/inlet.
Hope that helped!
It should pass from (10,8) if you dont have to worry about the island but if you do then it should start from (10,6 or 7) it should then pass towards (4,10) for both possibilities. it should then continue on to (1,6 or 7).
The mantle has the most mass