2. Complete the definitions using one word for each gap. (Use words given below) 1) An event which causes great harm or death - natural 2) The condition in which there are too many people living in one place 3) A large mass of snow, ice and rock falling down a mountain - 4) The cutting down of many trees - 5) A large amount of water covering a place which is usually dry 6) A long period of time with no rain -... 7) A sudden violent movement of the Earth's surface 8) A very violent tropical storm or wind in which air circulates rapidly. 9) A sudden large fall of earth and rocks down a cliff or the side of a mountain -...