Based on the passage provided, which is the best definition for the term subduction?
There are two main processes by which a volcano can form.
One way volcanoes are made is when two tectonic plates come together. When these two plates meet, one of them (usually the oceanic plate) goes under the continental plate. This is the process of subduction. Afterward, it melts and makes magma inside the magma chamber. When the pressure builds up and the magma bursts through the Earth’s crust, a volcano is formed.
The second way is when a tectonic plate moves over a hot spot in the Earth’s crust. The hot spot works its way through the crust until it breaks through. The caldera of Yellowstone Park was formed in that way; so were the Hawaiian islands.
Adapted from https://simple.wikipedia.org/wiki/Volcano
the process by which one tectonic plate glides along another tectonic plate in the opposite direction
the process by which one tectonic plate slides under another tectonic plate
the process by which one tectonic plate smashes into another tectonic plate
the process by which one tectonic plate moves away from another tectonic plate
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