Natural disasters

3. a large stream of mud, rocks, and water from a volcano
4. a severe snow storm with strong winds
7. a very large fire that is impossible to control, sometimes caused by heavy bombing from aircraft
12. to move people from a dangerous place to somewhere safe
14. a hole in the ground, especially in an area of limestone rock, that has been formed naturally, for example by water that has worn away the rock
16. rapid flooding of low-lying areas, caused by heavy rainfall or melting snow and ice
17. a long period when there is little or no rain
18. a mass of rock and earth moving suddenly and quickly down a steep slope
19. an extremely large wave caused by a violent movement of the earth under the sea
20. to fall down suddenly because of pressure or having no strength or support
21. to cause to fill or become covered with water, especially in a way that causes problems
22. a sudden violent movement of the earth's surface, sometimes causing great damage
23. to be unable to travel away from a place because of very heavy snow
24. a storm in which frozen rain falls and covers everything with ice
25. a violent wind that has a circular movement, found in the West Pacific Ocean

1. small, hard balls of ice that fall from the sky like rain
2. a storm with thunder and lightning, same as thunderstorm
5. a mass of dust and sand that has been lifted from the ground in very dry areas such as deserts and that is carried by the wind
6. a strong, dangerous wind that forms itself into an upside-down spinning cone and is able to destroy buildings as it moves across the ground
8. a period of time such as a few weeks when the weather is much hotter than usual
9. a fire that is burning strongly and out of control on an area of grass or bushes in the countryside
10. elevated safe area where people can escape a flood or a tsunami
11. an occasion when a volcano explodes, and flames, lava, ash and rocks come out of it
13. a large amount of ice, snow, and rock falling quickly down the side of a mountain
15. a violent wind that has a circular movement, especially in the West Atlantic Ocean