Describe the materials thrown out during volcanic eruptions.

1.	Describe the materials thrown out during volcanic eruptions.
Answer» 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.

Answer»

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.

Discussion

No Comment Found

Related InterviewSolutions

How the theory of plate tectonics has explained the formation of mountains like Himalaya or Alps and of the volcanic islands.
Which type of lavas weather into more fertile soil. Name also one useful feature of volcanicity other than soil fertility.
Name one useful feature of vulcanicity other than soil fertility.
Distinguish between the following pairs of terms associated with vulcanicity Cinder Cone and Composite Cone
Distinguish between the following pairs of terms associated with vulcanicity Laccolith and Lapolith
Distinguish between the following pairs of terms associated with vulcanicity.Geysers and Hot Springs
Name the three types of volcanoes on the basis of the frequency of their eruption.
What is called the Pacific Ring of Fire ? Why is it called so ?
What are the following:- (a) Fissure type of volcanoes (b) Spine or plug (c) Caldera (d) Mud volcanoes(e) Epicentre(f) ‘Ring of Fire’ (g) Cinder Cone
What are the influences of volcanic eruptions on man ?