4. Why are the ahot? a. Ashes are healed by the sun b. Ashes come from hot springs Ashes are burned by ultraviolet rays d. Ashes come from the hot interior of the earth 5. Which Philippine volcano had the most violent eruption? a. Canlaon b. Hibok-Hibok c. Mayon d. Pinatubo 6. When are volcanic eruption considered beneficial? B When they make the surrounding area fertileshes from an emerging volcano very b. When they hasten the growth of microorganism When they build a new landform such as volcanic island d. Both a and b 7. Which of the following is a safe way to do during earthquake? a. Run very fast when leaving the building b. Stay inside the building to protect your things c. Use the elevator when leaving from a high rise building d. Leave the building immediately after the first shock and proceed to open area 8. What is the intensity if the earthquake felt is moderately strong? a. Intensity I b. Intensity II c. Intensity III d. Intensity IV 9. What does magnitude of an earthquake mean? a. Energy released by an earthquake b. Effects of earthquake to structures c. Energy released by volcanic eruption Effects of volcanic eruption to structure d. 2​