The ring of fire is a string of volcanic sites in the pacific ocean that stretches between the americas, asia, and australia. what is the most likely cause of this volcanic activity? the earth’s core pushes through tectonic plates here there is a high number of convergent tectonic plate boundaries the melting of tectonic plates by particularly hot parts of the earth's crust the explosion of energy as a result of a collision between two nearby tectonic plates

Option B, There is a high number of convergent tectonic plate boundaries

Explanation:

The ring of fire is a series of volcanoes arranged in a ring which are formed from convergent tectonic plates movement which collide regularly and frequently. The tectonic plate movements cause the subduction of oceanic plates beneath the  continental plates around the pacific ocean belt. Later on due to this activity, the plates melt to produce magma.  

Thus, option B is correct.  

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igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.