2.2 Questions

1- The sliding down of a mass of earth or rock from a mountain or cliff
2- Landslides are caused through heavy rainfall, slumping of saturated earth and they are also caused due to undercutting by waves
3-  Construction of roads and railways on hillsides along with building works can weaken hillsides and make them more vulnerable during heavy rain which causes landslides
4- A sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action. They are measured using a Richter scale  
5- The cause of earthquakes in Australia is intra-plate tension where movements occur along cracks and faults in the Earth's crust
6- We experience it every 15 months and it doesn't effect Australia because we are in the centre of the epicentre 
7- It killed 13 people and injured 120 people with a Richter scale of 5.6
8- Earthquakes are caused by tectonic plates and landslides are caused by the weather
9- When an earthquake, landslide or volcano occurs under the sea it can trigger a Tsunami
10- Shake, Drop and Roar (Earthquakes, landslides or Volcanoes)
11- A Tsunami is formed when the earth shakes and creates Tsunami waves, then you see the water retreat back exposing sea life, then  often as the Tsunami can be heard as it approaches the shore because it makes a roaring sound.
12- Shake- Feeling of an Earthquake
Drop- Retreat of water'
Roar- Roar of the water
13- An undersea Earthquake
14- There are 23 monitoring stations in Australia and it took 20 minutes for one of these stations to pick up the Tsunami
15- The Tsunami grows when it reaches shallow water and makes a roaring sound
16- The United Nations set up a warning system for the Indian Ocean
17- Ted Bryant is a geoscience professor and warns the people that Earthquakes come every 500 years
18- 
a) 10N 100E
b) i- 3 hours, ii- 10 hours, iii- 5 hours, iv-9 hours