1. It could the lightning be fatal ?
2. How often do tsunamis happen ?
3. What should we do whem our house is in a flood?
4. How many people are killed by building fires every year? How can the fires start? What should your house have to detect the fires?
5. Where are volcanos made? What can the eruptions cause?
6. How many people died in Mont St. in May 18, 1980?
7. How many people are killed by wildfires?
8. How many countries in the U.S. have active volcanos?
9. Can the tsunamis cause a lot of destruction on the shore?
10. What are the active volcanoes in the USA?