The cause of the volcanic eruption?

How was the volcanic eruption caused? It turns out that the interior of the earth is full of hot magma. Under great pressure, magma will break through the crust from weak places and spew out, triggering volcanic eruption.

Volcanoes can be divided into active volcanoes, extinct volcanoes and dormant volcanoes. The Tambora volcano mentioned above and the volcano on the Hawaiian Islands are still active. This is an active volcano. An extinct volcano refers to a volcano that has been active in prehistoric times, but there is no eruption record in history. Most of the more than 600 volcanoes in China are extinct. Some volcanoes have recorded activities in history, but they have been inactive since then. This kind of volcano is called dormant volcano. A dormant volcano may suddenly "wake up" and become an active volcano.

Violent volcanic eruptions will devour and destroy large areas of land and burn a lot of lives and property to ashes. Surprisingly, however, volcanoes are often located in densely populated areas, such as Nasu volcano and Mount Fuji volcano in Japan. It turns out that the volcanic ash erupted from the volcano is a good natural fertilizer, and the mulberry trees in Mount Fuji grow very well, which is beneficial to sericulture. Vesuvius is rich in grapes. Volcanic areas often become tourist attractions because of their peculiar scenery.

Before people can control volcanic activity, strengthening prediction is the only way to prevent volcanic disasters. Scientists' research on volcanic eruptions often benefits from some mutations in animals and plants. Many animals often flee before the volcano erupts, as if a catastrophe of knowledge is coming. There is a strange plant in Java, Indonesia, which will bloom before the volcano erupts. Local residents call it "volcano warning flower".