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Question

Volcanoes.

The tectonic plate boundary at which volcanoes occur is primarily at convergent plate boundaries where one tectonic plate is subducted beneath another. This type of boundary is known as a subduction zone.

Volcanoes are formed by the movement of plates when one tectonic plate (usually an oceanic plate) is forced beneath another (often a continental plate) in a process called subduction. As the subducting plate sinks into the mantle, it undergoes increasing pressure and temperature. The heat and pressure cause the subducting plate to melt, forming magma. The magma is less dense than the surrounding mantle, so it rises through the overlying plate, eventually reaching the surface and erupting as a volcano.

Repeated eruptions and accumulation of volcanic material over time lead to the growth of a volcanic mountain. The exact type and characteristics of the volcano depend on various factors such as the composition of the magma, the presence of gases, and the type of plate boundary.

Answer 1

Volcanoes form at convergent plate boundaries through a process called subduction. As one tectonic plate sinks beneath another, it melts and forms magma. This magma eventually reaches the surface and erupts as a volcano. Factors like magma composition, gas presence, and plate type determine the volcano's characteristics.