In 1980, Mount St. Helens, a volcano in the state of Washington in the United States, erupted and left only the remnants of a forest and a layer of nutrient-rich ash. What biological event followed the Mount St. Helens eruption?

      The biological event that followed the Mount St. Helens eruption is called biological succession.

Explanation:

       What happens in this process is that, once a biome, or a specific place gets destroyed, all this organic matter that it's left of it will be on the ground, and this can be the basis of another community that can grow exponentially in this place. Once the main events of the eruption pass, what happens is that, plants will start growing up again in some time, and this will happen until the point that this community gets to its climax again in some years.

i don't know. if i were you, i would search it up online : d

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.