3. At convergent boundaries, one tectonic plate is pushed under another plate into the mantle. What happens to the plate that is pushed into the mantle? a. It slides under the second plate and comes out the other side. b. It folds under itself, moving back toward the mid-ocean ridge, and reemerges there. c. It is heated by the mantle until it melts. d. None of the above.

When a tectonic plate is pushed into the mantle at a convergent boundary, it experiences extreme heat and pressure, leading to its eventual melting. This melting contributes to the formation of magma, which can lead to volcanic activity. Over time, some of this molten material can rise back up, potentially causing volcanic eruptions in the surface regions above. Real-world applications of understanding convergent boundaries are crucial in geology, especially for predicting volcanic eruptions and earthquakes. Areas situated near these boundary zones often have high volcanic activity, making geological studies critical for disaster preparedness and urban planning to safeguard lives and property from natural hazards.