1. what conditions are necessary for a hurricane to form?

2. on average, how many hurricanes form each year?

3. which direction do hurricanes rotate?

4. what factor determines wether a storm is considered a tropical depression, tropical storm, or hurricane?

5. what is the name of the scale used to measure hurricane strength and what is the range of that scale?

6. how do hurricanes receive their names?

7. where are the calmest winds in a hurricane located?

8. where are the strongest winds in a hurricane located?

9. how wide and long are spiral rainbands?

10. what five aspects of a hurricane can potentially cause damage?

11. does hurricane strength always determine how much damage is caused? explain.