<span>A. convergent boundaries
Convergent plates are two tectonic plates that are colliding as they move toward each other. There are several types of converging plate boundaries. Oceanic</span>
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.
The answer is: St. Lawrence River .
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