In 1980, lava that flowed from the eruption of Mount Saint Helens in the state of Washington destroyed the vegetation that once existed in the area. Today, the vegetation has reappeared as a result of-

Answer: It to activate

Explanation:Mount St. Helens, Washington, is the most active volcano in the Cascade Range. Its most recent series of eruptions began in 1980 when a large landslide and powerful explosive eruption created a large crater, and ended 6 years later after more than a dozen extrusions of lava built a dome in the crater.