volcanoes

1. american and African plates which 2 tectonic plates are moving away from each other?
4. energy What type of energy from volcanoes can be used to produce electricity?
7. what type of margin do you get where 2 plates slide past each other in different directions or at different speeds?
9. what type of margin do you get where 2 plates collide and are both continental plates?
10. current what moves the tectonic plates?
11. which part of the tectonic plate does earthquakes and volcanoes occur?
12. What does ash do to the soil near volcanoes?
13. which part of the tectonic plate does earthquakes and volcanoes not occur?

2. what difficulties does contaminated air with ash and acidic fumes cause?
3. what type of margin do you get where plates are pulling apart?
5. what type of margin do you get where Ocean plate collides with a Continental plate?
6. what are delayed & diverted due to ash clouds?
8. and south American plates which 2 tectonic plates are colliding with each other?