global hazards

• Constructive plate margins - the plates move apart from each other
• Destructive plate margins - one plate is forced beneath another,
• Conservative plate margins - the plates move past each other or are side by side moving at different speeds.
• Destructive plate margins - usually involves an oceanic plate and a continental plate. The plates move towards one another.
• Constructive plate create - volcanos and earthquakes
• Conservative plate create - earthquakes
• Destructive plate causes - earthquakes and volcanos
• collision zone -  this is When they move in

  slightly diffrent Directions . This

   happens when a lot of Pressure

   builds up and friction happens.
• Constructive plate  - This is When the plates are moving

  in diffrent Directions. The currents

   move away from each

  Other to create new land in

   Iceland. Over the Years Iceland

   landscape has changed because of

  The convection currents . The plates

  That are pushing apart from each other are the north American plate and the Eurasian plate
• Conservative plate - the plates move past each other or are side by side moving at different speeds. As the plates move, friction occurs and plates become stuck. Pressure builds up because the plates are still trying to move. When the pressure is released, it sends out huge amounts of energy, causing an earthquake. The earthquakes at a conservative plate boundary can be very destructive as they occur close to the Earth's surface. There are no volcanoes at a conservative plate margin.
• Destructive plate - usually involves an oceanic plate and a continental plate. The plates move towards one another and this movement can cause earthquakes.
• primary effects of volcano - lava flow , ash and volcano gasses
• secondary effects of volcano - climate effects , tsunmi and earthquakes
• example of volcano - Iceland 2010
• example of earthquake - haiti 2010
• how to make a building earthquake proof - isolators , seismometer and strong base
• haiti earthquake size - 7.0