What is a volcano?
Volcanoes often resemble mountains. They are cracks in the earth which go from the surface right down to the hot, melted rocks below. The rocks are known as magma. The volcano erupts when the boiling magma rises up through the crack to the top, i.e., the earth’s surface. Then it loses its gases and turns into lava. The eruption is caused by pressure in the gases that are trapped inside the magma.
Related posts:
What causes snow avalanches? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10...
General Knowledge
GK Question "How Can Animals Understand Each Other?" general knowledge book English 2021 current aff...
General Knowledge
Why do people walk in circles when they are lost? Complete General Knowledge Question and Answer for...
General Knowledge
Why do cats and dogs have fleas? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9...
General Knowledge
What is the difference between toadstools and mushrooms? Complete General Knowledge Question and Ans...
General Knowledge
What is the caste system? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 1...
General Knowledge
GK Question "How Did We Arrive At Our System Of Measurement?" general knowledge book English 2021 cu...
General Knowledge
What is a cyclone? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 1...
General Knowledge
Which animal did the Mayans worship? Complete General Knowledge Question and Answer for Class 6, 7, ...
General Knowledge
Do you know “First woman Anglican bishop of India”.
Do you know
What are microchips? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and...
General Knowledge
What kind of gods did the earliest human beings worship? Complete General Knowledge Question and Ans...
General Knowledge
Do you know "One minute mobile phone charger".
Do you know
Can comets collide with planets? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9...
General Knowledge
Which animal abandons its babies very early? Complete General Knowledge Question and Answer for Clas...
General Knowledge
GK Question "What A Calorie Is?" general knowledge book English 2021 current affairs quiz and answer...
General Knowledge
Do you know “Only Asian in ITWA”.
Do you know
Were the Mayans skilled in astronomy? Complete General Knowledge Question and Answer for Class 6, 7,...
General Knowledge
What is condensation? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 an...
General Knowledge
GK Question "What Is The Eye Made Of?" general knowledge book English 2021 current affairs quiz and ...
General Knowledge