Describe the materials thrown out during volcanic eruptions.
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Describe the materials thrown out during volcanic eruptions.
Describe the materials thrown out during volcanic eruptions.
The materials thrown out of a volcano due to eruptions are of three types :
1. Solid Materials : The solid materials include large fragments of rocks known as volcanic bombs. The finest particles include cinder volcanic ash and dust.
2. Liquid Materials : The liquid materials include Basic lava and Acid lava. Acid lava has more of silica while Basic lava has low content of silica.
3. Gaseous materials : The gaseous material is mainly composed of steam. The other gases include Oxygen Hydrogen Sulphuric acid Carbon dioxide etc.
Describe any three advantages of volcanoes.
1. Many minerals from the interior of the Earth come on to the surface.
2. Fertile soils like Black soil are made by breaking up of lava.
3. Electricity is generated from gases emitted out during volcanic eruptions.