GEOLOGY

Detailed explanation-1: -Stratovolcanoes are more likely to produce explosive eruptions due to gas building up in the viscous magma.

Detailed explanation-2: -There isn’t much in Kamchatka, a remote peninsula in northeastern Russia just across the Bering Sea from Alaska, besides an impressive population of brown bears and the most explosive volcano in the world. Kamchatka’s Shiveluch volcano has had more than 40 violent eruptions over the last 10, 000 years.

Detailed explanation-3: -In general, the more felsic the magma the greater the volatile content. So mafic/basaltic volcanoes are fairly quiescent, intermediate/andesitic volcanic eruptions are moderately explosive, and felsic/rhyolitic volcanoes may be extremely explosive.

Detailed explanation-4: -Answer and Explanation: Yes, composite volcanoes are explosive. They are cone-shaped and have steep sides where layers of lava, ash, and volcanic debris help form the mountain. Thick and viscous lava comes from composite volcanoes which causes the explosive eruption.

Detailed explanation-5: -Composite cones experience many eruptions, as well as many different types of eruptions, during their history and evolution. Eruptions may be phreatic, phreatomagmatic, and magmatic. Phreatic and phreatomagmatic eruptions are especially common on snow-covered or glaciated peaks.