question2

2) What kinds of material do volcanoes erupt?
 * How does the amount of silica and gas in magma affect the force of a volcanic eruption? (Amount of gas dissolved in the magma, Thickness of the magma, Temperature of the magma, Silica content)
 * Explain the difference between the different types of rock fragments (ash vs. cinders vs. block)
 * Explain what kinds of gases escape from volcanoes

The volcanoes erupt ash, cinders and block. ash: Is made up of rock fragmentsless than 2 milliliters diameter. cinders: It contains holes and tunnels by escaping gases. block: They are large fragments are called blocks or bombs.

A great deal of material erupts from volcanoes as rock fragments. The fragments form as: * bubblesof gas pop, tearing magma apart * large pieces of lava are thrown in the air