A. seafloor spreading at mid-ocean ridges
Japan because it haven't experienced before
In 1815, Mount Tambora erupted on Sumbawa, an island of modern-day Indonesia. Historians regard it as the volcano eruption with the deadliest known direct impact: roughly 100,000 people died in the immediate aftermath.
Answer: Tokyo, Japan
south china sea
Sukhbaatar, Mongolia
Philippine Sea
South Pyongan, North Korea
