Eruption Of A Lifetime
By: Madison Blackmon
Volcanoes are openings in the surface of the Earth. From the melted rock forms magma. It forms at the bottom then works its way to the top. Magma turns into lava and while getting hotter and hotter collects rock and ash. When the lava reaches the top it explodes.
Negative Affects Towards Atmosphere
After a volcanic eruption ash and smoke rises into the atmosphere which can block the sun for several months. This affects the plants because they're unable to obtain sun to photosynthesize.
Negative Affects Towards Water
When a volcanic eruption occurs tree limbs, ash, and other chemicals pollute the water making it an unsafe environment and drinking water.
Negative Affects Toward Surface
When a volcanic eruption happens lava covers all of its surroundings which widely destroys plants in a large range.
Positive Affects Towards Atmosphere
After volcanic eruption occurs smoke and ash rise up covering the sun. This helps cools down the Earth by taking away heat from the inside.
Positive Affects Towards Water
Although lava included many chemicals it also included lots of minerals which are deposited into the water.
Positive Affects Towards Surface
While lava covers all of its surroundings the volcanic soil is rich, so once everything has cooled down plants will make a huge comeback.
Detailed Paragraph
When a volcano erupts it can change it surroundings dramatically. This can cause major effects on the habitats, food webs, and climate. Before the Mt. St. Helen's eruption the cold forest was filled with plentiful trees and a large lake After the eruption the lake was drained with ash, mud and tree limbs. All the organisms with a home of the lake or trees would have to find another place to live. Many animals that couldn't succeed of finding a new habitat died. The lava covered the land destroying all the plants. All of the herbivores died from starvation. Then the consumers that ate the herbivores started to die. This changed the food webs because the organisms had to adapt to find a new food source. The eruption changed biodiversity because only certain animals could survive under those circumstances .