The silica of were the volcano erupts usually is what determines if a volcano is explosive or non-explosive. If the silica content is low that means the volcano will be non-explosive and if the silica content is high the volcano… Full Answer
The answer is Explosive . It is explosive because during a explosive eruption there are clouds of ash, gas , and rock , and with a pyroclastic flow there is dust and ash . there for the answer must be… Full Answer
Mount St. Helens is generally regarded as an explosive volcano, but like most stratovolcanoes, it can produce both explosive and non-explosive eruptions.