Fill in the gaps with appropriate words.

1. A ... is the same as a tidal wave.

2. A large ... can run down a mountain for many miles and destroy everything in its path.

3. More than 70 people suffered from the ... yesterday after a dam burst.
4. You often see ... before you hear the clap of thunder.

5. A ... is a long period when there is very little or no rain.

6. Many children get scared during a ... .

7. ... never happen in polar regions due to cold surface temperatures.
8. Katrina is estimated to be one of the worst ever ... in the world.

9. ... is a storm with strong winds and snow.

10. ... is a sudden heavy fall of small, hard balls of ice.