chapter 2 -Critical thinking

2. Why are most oceanic trenches found in the Pacific Ocean?
There is about 50,000 km of convergent plate margins, mostly around the Pacific Ocean, because the reason for the reference “Pacific-type” margin. If you look at the map, you can see the Pacific is a circle by the Japan Sea, Philippine Sea and Europe Sea. I think because too much water movement and plate movement cause the too much trenches here.