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question 18

Multiple Choice

Find all solutions.

• A) or
• B) or
• D) or

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Definitions:

Volcanism

The phenomenon of eruption of molten rock (magma) onto the surface of the Earth or the solidification of magma into igneous rock.

Islands Formation

The process by which islands are created, often through volcanic activity, sediment deposition, or coral reef buildup.

Pacific Ocean

The largest and deepest of the world's ocean basins, extending from the Arctic in the north to the Southern Ocean in the south.

Seafloor Spreading

The process by which new oceanic crust is created at mid-ocean ridges as tectonic plates diverge, allowing magma from the mantle to cool and solidify.