Question

eruptions are move violent if the Lava has a large proportion of​

Answer 1

Answer:

When the eruption ends, liquid lava often drains leaving an open. If the magma has high gas content and high viscosity, the gas will as evidenced by the large number of hot springs and geysers in the Lahars may be hot or cold and move at high velocity as they fill stream valleys that drain the volcano.

Chemically lava is made of the elements silicon, oxygen, aluminum, iron, magnesium, calcium, sodium, potassium, phosphorus, and titanium (plus other elements in very small concentrations.