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?
a. primary succession b. secondary succession c. a climax community d. species extinction

The answer to the question stated above is letter a.primary succession .

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. The type of change which was seen in the ecosystem around Mount St. Helens after it erupted is primary succession.

The ecosystem surrounding Mount St Helen's experienced (A) Primary succession following the volcano in 1980.

Primary succession occurs when plants begin to grow on land that has previously not been vegetated.

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