GEOLOGY

EARTH SCIENCE

VOLCANOES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following terms are used to describe a volcano that is has not recently erupted, but may in the future? (aka sleeping volcano)
A
Composite volcano
B
Active volcano
C
Extinct volcano
D
Dormant volcano
Explanation: 

Detailed explanation-1: -Dormant volcanoes have not erupted for a very long time but may erupt at a future time.

Detailed explanation-2: -Dormant → Dormant volcanoes are volcanoes that have not erupted in a long time but are expected to erupt again in the future. Examples of dormant volcanoes are Mount Kilimanjaro, Tanzania, Africa and Mount Fuji in Japan. IMAGE. Extinct → Extinct volcanoes are those which have not erupted in human history.

Detailed explanation-3: -Volcanoes go dormant because magma from the Earth’s mantle can no longer reach the volcano. For example, in Hawaii, the line of islands are slowly moving to the northwest. Meanwhile, the supply of magma stays in the same place within the Earth, which currently happens to lie beneath the Big Island.

Detailed explanation-4: -Shield Volcano Shield volcanoes are volcanoes shaped like a bowl or shield in the middle with long gentle slopes made by basaltic lava flows. These are formed by the eruption of low-viscosity lava that can flow a great distance from a vent. They generally do not explode catastrophically.

Detailed explanation-5: -The six eruption types are in order from least explosive to the most explosive; Icelandic, Hawaiian, Strombolian, Vulcanian, Pelean, and Plinian. Notice how, as the eruptions become more violent, the cone shapes become more steeply constructed.

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