Answers by visitors named: VIncent CHow

WHAT IS NUMBER THREE???? Here are the answers: 1. Granite 2. Trench 3 ???? 4. Volcanoes 5. Magma 6 .Richter 7. Earthquake 8. Lithosphere 9. Surface 10. Core 11. Ring of Fire 12. Tsunami 13. Seismo Graph 14. Basalt NOW HELP!!!!!!