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Gondwana (Plate tectonics (Detection (GPS (Global Positioning System)…

- - - - Indicate depth of ocean
    - - Map ocean floor
    - - Used to map plate boundaries
      - Monitors plate movement
      - Satellites send signals to receivers on Earth
  - - - Magma rises, hardens, forms new crust
  - - - Sinks into semi-solid material; destroyed
    - - Where two plates meet
      - Creates mountains, volcanoes
- - - - Iron
    - - Nickel-iron alloy
- - - - 225 million years ago
  - - - 65 million years ago
- - - - Ash, lava, gas
        
        Burnt alive
        
        Buries homes
        
        Sulfur dioxide dissolves into water in atmosphere
        
        Sulfuric acid
        
        Stops sunlight from reaching surface
        
        Can cause engine failure for planes
        
        Device detector
        
        Tells water clouds apart from ash clouds
      - Tsunamis
    - - Copper, silver, lead, zinc produced
      - Soils are fertile
        
        Broken down of igneous rocks
  - - - Tsunamis
        
        Fast waves
        
        Kills lives
        
        Land/infrastructure destruction
        
        Economic strain