Volcanoes

By Paul Organek

How Do They Happen?

Volcanoes happen by the magma from within the earths upper mantle working its way up to the earths surface. When the volcanoe erupts it forms a lava flow and deposits ash in the sky. Volcanoes get bigger and bigger every time they errupt.

Where Do Volcanoes Happen?

Volcanoes occur along the earths fault lines. This is where the earths tectonic plates meet. When the plates move they can cause a volcanic eruption. Hawaii has some of the worlds most active volcanoes. Mount Kilauea has been errupting since 1983 and continues today.

The Effects of A Volcano.

There are many positive and negative effects of volcanic eruptions. Some can be very devastating. The lava can burn homes and start wildfires. It can destroy roads and bridges. A positive effect is that lava can create new land as it hardens. The heat from the lava is a resource for energy. Ash destroys crops at first, but eventually makes the soil better for the farmland.

How To Reduce Impacts on Humans.

Some ways that we can reduce the impact on humans is that people can evacuate safely from the area. Sensors should be placed around the volcano to measure levels of sulphur dioxide and carbon dioxide gas. Another way to reduce the impact on humans is have emergency services to be trained to be ready for an eruption and deal with injuries.