VOLCANOES

2. World's largest caldera.
4. Stationary region of abnormally high temperature which triggers anatexis of the overlying oceanic or continental plate.
8. Country’s highest peak
9. Volcano located in Camarines Sur which is now considered as an active volcano.
10. Boundary wherein plates move towards each other.
12. Beds of rocks that form as a result of rock formation between layers of older materials.
13. Any vent or built-up mountain where lava, pyroclastic materials, and/or gases erupt
14. Its last minor phreatomagmatic eruption was on January 6, 2025.
15. Its 18th eruption was in 2017.
17. Pipe or vent at the heart of a volcano where material wells up from beneath the surface.
19. Type of volcano based on activity characterized by having no eruptive histories, are heavily weathered, and will never erupt again.
21. Large depression or collapsed crater which is at least 1-km wide.
22. Bottom and foundation of the volcano.
25. Open space or an area of a highly fractured substrate where magma accumulates.

1. What type of volcano is Mt. Fuji based on structure?
3. Theory which states that the lithosphere, divided into plates, overlies and constantly moves on a weaker region in the mantle called the asthenosphere.
5. An example is the Binintiang Malaki which is a small, steep mound composed of tephra or volcanic fragments formed by explosive eruptions.
6. Chains of volcanoes
7. Volcano which is considered as the highest mountain in Visayas.
11. Occurs once substances like volatiles and water are added to rocks, resulting in melting into magma.
16. Partial melting
18. Circular depression around a volcanic vent where the lava, ash and rock erupt out of a volcano.
20. Volcano in the Philippines that is considered as the most active int the country since 1616.
23. Yellowstone caldera is an example of ____ hotspot.
24. Occur between continental plates, due to the anatexis of both the crust and the mantle.