Match the name of a disaster with its definition and its cause. Write the table in your copybook in short! You are going to have three columns: 1 st - name, 2 nd – definition, and 3 rd – cause. 1. Avalanche a) is a very large column of wind that spins around very quickly k) Usually during a hot, dry summer forest fires occur. They may be started by people or by lightning in storms. It can easily be spread because of wind. 2. Forestfire/ Wildfire b) is the sudden occurrence of a violent discharge (the sudden giving off of energy) of steam and volcanic material L) It happens on a slope like a mountain or a hill. The rocks and earth become loose and fall down the slope. When soil on the slope is wet, a mudslide may occur. 3. Volcanic eruption c) Is a large amount or number, especially when moving from one place to another m) 'Big wind', is most likely to occur in late summer in America. They are caused by low air pressure and thunderstorms and result in strong winds and heavy rain. When they happen in the Atlantic Ocean we call them hurricanes; however, they are called Typhoons when they happen in the Pacific Ocean 4. Tornado d) is the large movement of snow down the side of a mountain n) It occurs when electricity comes down from the sky and hits the ground. A lightning strike can typically be 30, 000 °C and travel at 60, 000 miles per second. Thunder is the loud sound that we hear soon after a flash of this 5. Lightning e) Is the downward falling or sliding of a mass of soil, mud, rock o) It happens when there has been no rain in a place for a long time. The land becomes to dry and it impossible to grow any plants or vegetables on the land. It sometimes occurs in very hot countries. 6. Landslide f) Is a period of dry weather, p) It occurs when a large amount of water covers the land. especially a long one that is injurious to crops Too much rain usually causes it. It also happens when the water level in a river becomes too high. As sea levels continue to rise, the risk of flooding increases 7. Hurricane/ Typhoon g) Is a sudden movement of the earth's crust caused by the release of stress accumulated along geologic faults or by volcanic activity Q) It occurs when the plates of the earth start to move and the ground begins to move and shake. It can range from the very big (which can destroy cities) to the very small (which you might not even notice The size of it is measured on the Richter scale. 8. Flood h) is a fire that spreads rapidly in the forest and which is hard to extinguish r) It happens in most places around the world, but is most common in America. Instability of air cause growing of every thunderstorm. Warm, moist air is less dense than cold, dry air. In this density game, the surface air will begin to rise, and in an unstable atmosphere, what goes up will keep going up. 9. Earthquake i) Is a violent, tropical, cyclonic storm of the western North Atlantic, having wind speeds of or in excess of 72 miles per hour (32 m/sec) s) It occurs when the snow becomes too loose and as it slides down it mixes with air and water to cause a powerful and dangerous disaster. 10. Drought j) Is a brilliant electric spark discharge in the atmosphere, occurring within a thundercloud, between clouds, or between a cloud and the ground t) It is caused by the plates of the earth moving and the pressure makes magma push up through the cracks in the earth.