A volcano is an opening in the Earth's crust that allows hot molten rock, ash, and gases to escape from the Earth's interior.
Two types of volcanoes include:
-Shield Volcanoes: Large broad lopes with fluid lava flow.
-Composite Volcanoes: Steep and symmetrical with explosive eruptions.
This is an image of a volcano.
Volcanoes erupt in different ways. Viscosity and gas content in magma are the two main factors that are responsible for the variations in volcano eruptions. Each volcano has a unique composition of magma, which is what makes volcanoes erupt differently.
Volcanoes can erupt explosively and effusively. Explosive eruptions are violent explosions that result in ash, gas, and rock fragments being thrown into the atmosphere. Effusive eruptions on the other hand are eruptions that result in a gentle flow of lava leaving the volcano.
This image shows the difference between effusive eruptions and explosive eruptions.
Volcano eruptions come with many hazards. Some of which include:
Lava flows that can destroy all things in its path.
Toxic gas clouds that can harm/poison all living organisms.
Ash falls that are so big they can cover large areas and even collapse buildings.
Volcano eruptions can even result in avalanches, tsunamis, and mudflows forming.