Trading blocs.
Or Acronyms.
"Same question up top"
A. At the divergent plate boundary in the middle of the ocean
B. On the oceanic crust along the edge of the North American Continent
C. At the convergent plate boundary in the middles of the ocean
D. On the continental landforms on either side of the ocean
The answer is A. At the divergent plate boundary in the middle of the ocean (Apex)
They form only above snowlines at higher altitudes where so cold and dry snow doesn't melt and accumulates.
Answer:
That's ur answer 黙れ I hope it helps