Question

A volcano  is  a _____or  an  opening  in  the  Earth’s  Crust.

TNSCERT Class 7 Geography Ch1. The Earth -Its Structure and Tectonic movements

Answer 1

The crust of the earth has got specific openings. These openings help in the escape of volcano ash, lava, and other such substances. This process is mainly known as a rupture.

The rescue of hot lava, magma, lava, etc. occurs from the magma chamber present there. This conic shaped hot-headed mountain is known as a volcano.

A dormant volcano is where there is no eruption since ages, but it will erupt again in the future. An extinct volcano has not witnessed outbreak since 10,000 years and is dead.