Question

explain volcanic activity
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Answer 1

VOLCANIC ACTIVITY AND ERUPTIONS. Volcanic activity ranges from emission of gases, non-explosive lava emissions to extremely violent explosive bursts that may last many hours. ... A volcanic event occurs when there is a sudden or continuing release of energy caused by near-surface or surface magma movement

Answer 2

Answer:

Volcanic activity ranges from emission of gases, non-explosive lava emissions to extremely violent explosive bursts that may last many hours. A volcanic event occurs when there is a sudden or continuing release of energy caused by near-surface or surface magma movement. The three stages of a volcano cycle are active, dormant, and extinct.Volcanic activity occurs at two types of plate boundaries: mid-ocean ridges and subduction zones. At mid-ocean ridges, basaltic eruptions produce new sea-floor crust.The gases and dust particles thrown into the atmosphere during volcanic eruptions have influences on climate. Most of the particles spewed from volcanoes cool the planet by shading incoming solar radiation. The cooling effect can last for months to years depending on the characteristics of the eruption.

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