Question

how explosively or quietly a volcanoe errupts depends on what

Answer 1

Answer:

HERE IS THE ANSWER

Explanation:

The two main factors that influence how a volcano will erupt are viscosity and gas content. Both are related to the composition of the magma.

violent volcanoes

magma are very viscous and can contain a lot of gas (up to 7-8 weight present). As the magma moves into the vent and the pressure drops, the gas wants to escape. The magma is very sticky and resists the expansion of the gas bubbles. Ultimately, enough bubbles grow and expand to blow the magma into ash size fragments and eject them violently into the atmosphere

quiet volcanoes

which is low in viscosity and low in gas content (about 0.5 weight percent). The gas that is present can readily escape and little pressure builds up in the magma.