By: Bella Allen

Volcanic eruption

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volcanoes are openings in the earths crust created when molten material under the crust is ejected upward through the surface. ​A volcanic eruption occurs when magma rises into cracks or weak spots of the Earth's crust. Pressure builds up inside the Earth causes a plate movement. The magma explodes to the surface causing a volcanic eruption.

Negative effects after a Volcano Erupts

Positive Effects after a Volcano

How the habitat, food webs, & biodiversity are affected

Volcanic eruptions not only affect the habitat, but the food webs and biodiversity too. Eruptions can affect the habitat because they kill plants (smoke cover sun and the plants not being able to get sunlight needed for growth) and animals in that environment. ​That would then affect the food webs because if a large amount of a certain species were killed by the volcano, predators would not be able to eat due to the lack of prey. Since they would not eat, the predators would begin to die. In the end animals would continue to die causing a domino effect also can be described as if one species died the species that eats wouldn't have a food source then it would die and then it happening to the next species that eats it, causing that domino effect. Biodiversity is then affected. Since more and more species begin to die out, this decreases biodiversity and sustainability.