Across
- 1. A violently rotating column of air touching the ground
- 4. Large animal that lives in ocean
- 6. A mountain or hill having a crater or vent through which lava erupts
- 7. Flightless bird that lives in Antarctica
Down
- 2. Having too many people for the amount of food, materials and space
- 3. The branch of science concerned with the processes of the atmosphere
- 5. A low area of land between hills or mountains with a river or stream flowing through it