On May 18, 1980, Mount St. Helens sent an explosion of ash, gas, and rock into the sky. This eruption led to the death of 57 people, in addition to permanently changing the surrounding landscape. It is still one of the most disastrous volcanic eruptions in recent history. What was the tragic effect of the Mount St. Helens eruption? (2 points) Group of answer choices As a result of a volcano, 57 people died. Ash, gas, and rock went into the sky. It permanently changed the landscape. On May 18, 1980, there was an explosion.