2.5

1. A tropical cyclone is a storm system characterized by a large low-pressure centre and numerous thunderstorms that produce strong winds and heavy rain.

2. They occur anywhere in the tropics.

3. Queensland, Northern Territory and North Western Australia.

4. out of the 10 that form in the Australian region 6 of them cross the coastline.

5. Hurricanes or typhoons.

6. a. tropical    b. moist    c. heat     d. high    e. spiral   f. surface

7. The eye is middle of the cyclone and it is calm and has clear sky.