Across
- 3. center of a hurricane
- 4. name given to molten rocks beneath the earth's surface
- 7. category of an air mass relating to its latitude
- 10. cyclones with winds speeds over 679 mph
- 11. the alternating rise and fall in sea level with respect to the land
- 12. the opening through which volcanic material escapes
- 14. referring to water vapour content
- 16. term used to describe volcanoes which show no sign of activity
- 17. over the sea
- 18. hot air __________
Down
- 1. volcanoes occur when there is a buildup of heat and ____________
- 2. type of volcano
- 5. name given to the area where air masses meet
- 6. over the land
- 8. name given to volcanic material on the surface of the earth
- 9. also known as basaltic floods
- 12. name given to all types of storms
- 13. air mass source region
- 15. the __________ has a stronger effect on tides
- 17. a difference in pressure causes air masses to __________