D.Vietnam. because of those places named the only place it runs through is Vietnam
Polar easterlies is the answer because it is in the polar area
I think it would be choice B
Answer: volcanic activity
Explanation: The vast majority of volcanic activity on the planet occurs along the mid-ocean ridge, and it is the place where the crust of the Earth is born. The material that erupts at spreading centers along the mid-ocean ridge is primarily basalt, the most common rock on Earth.
