___ 1. Lava flow destroys everything in its path ___ 2. Volcanic gasses like sulfur dioxide can cause global warming ___ 3. Lahar is described as a mudflow ___ 4. Lava provides valuable nutrients for the soil ___ 5. Pyroclastic flow is a flow of hot and dry gasses and fragments ___ 6. Watch out for lahar flows, especially when sudden rains occurs
