On may 18, 1980, mount st. helens in washington state experienced a huge volcanic eruption after a magnitude 5.1 earthquake. during the eruption, hot ash and pumice poured down the west, south, and east sides of the mountain, melting the snow and ice at the top of the volcano and creating volcanic mudflows. which type of change was seen in the ecosystem around mount st. helens after it erupted?

The conditions here represents Primary Succession.

The primary succession takes place at the places where the soil has lost its  fertility and no plant can grow there.

After volcanic eruption there are chances that plants will grown on the mudflows and the ashes or leftover materials of the volcano and earthquake.

The primary succession at that place will lead to formation of an ecosystem.

what is this saying?