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Geography (employment sectors (Primary sector (retrieves natural resources…

- - - - mineral-rich lava can be mined after it has cooled down (mined for gold, silver, diamonds and zinc)
      - volcanos attract tourists from around the world and help the locals earn money, creating jobs for people in the tourism industry and the locals
      - natural hot springs
      - people live near volcanoes because of the nutrient rich soil that is formed after a volcano erupts
      - steam from underground can be used as energy (geothermal)
- - - - types of crust
        
        continental crust
        
        carries land
        
        is lighter than oceanic
        
        Is thicker than oceanic
        
        Is older
        
        Mostly made of rocks such as granite
        
        oceanic crust
        
        Is thinner
        
        Younger
        
        Is denser
        
        Made up of basalt rocks
        
        Carries ocean
    - - semi-molten due to high temperatures with pressure
    - - solid due to compression of gravity, mainly iron and nickel
    - - mainly iron and nickel
    - - Constructive plate boundaries - Two plates pulling away from each other
        
        land is destroyed - can cause earthquakes
      - Conservative plate boundaries - Two plates sliding away from each other or moving in the same direction at different speeds
        
        no land is created or destroyed - causes earthquakes
      - Destructive plate boundaries - Two plates (one oceanic, one continental) colliding together
        
        oceanic
        crust is formed when magma rises to fill the gap and cools down
      - plates move due to convection currents
- - - - 226,000 lives lost in 13 countries
      - up to 5 million homeless
    - - Lost jobs due to destroyed buildings
    - - Earthquake, magnitude of 9 in the Indian Ocea
      - Part of the Earth's crust jolted upwards causing a swell that turned into a tsunami (conservative plate boundaries
    - - Fresh water supplies including wells were polluted by salt water
      - Farming land lost due to salt water
      - Destroyed coral reefs, mangroves, forests and wetlands
    - - Water purification tablets were sent
      - The UN call an emergency conference in Jakarta, Indonesia to decide what to do about the disaster
      - Temporary Housing
      - Bodies were buried in mass graves
      - 5 million people located to temporary refugee camps
      - A tsunami warning system was installed