What is the positive and negative effect of volcano eruption?
Roughly every 100,000 years, there’s a supervolcano explosion somewhere in the world, the consequences of which can be fatal. If the volcano below Yellowstone National Park were to erupt, it would result in worldwide hunger and a volcanic winter (the cooling of the lower atmosphere).
Unlike the ash produced by burning wood and other organic materials, volcanic ash can be dangerous. Its particles are very hard and usually have jagged edges. As a result, it can cause eye, nose, and lung irritation, as well as breathing problems. Ash can also contaminate water supplies.
When dispersed widely over a drainage basin, tephra can change rainfall/runoff relationships. Low permeability of fine ash deposits leads to increased runoff, accelerated erosion, stream-channel changes and hazardous floods.
What are the benefits of Volcano?
Below the Earth’s core there’s a red-hot liquid rock called magma. A volcano is a rupture on the Earth’s crust, which allows lava, ash, and gases to escape, when magma rises to the surface. Volcanoes can change the weather. They can cause rain, thunder and lightning. They can also have long-term effects on the climate.
Positive effects Geothermal energy can be generated in areas where magma lies close to the surface. This is good for increasing renewable energy use. Ash ejected by the volcano acts as a good fertiliser for soils. Volcanoes attract many tourists, who enjoy the dramatic scenery that they produce.
What are the 5 positive effects of volcanic eruption?
What are the negative effect of volcanic eruption?
Positive: Lava and Ash deposited during an eruption breaks down to provide valuable nutrients for the soil… this creates very fertile soil which is good for agriculture. Negative: Deadly and devastating Lahars are made when… ash and mud from an eruption mixes with rain or melting snow making fast moving mud flows.