Plates Voclanoes Earthqueake - junior cert
Help!
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| Name the 3 layers forming the earth | The Core, the Mantle (Inner + Outer) and the Crust
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| What is the core made up of? | The Core is made of Molten Magma - red hot !
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| What causes the magma to move within the Mantle? | Convection Currents
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| What causes the creation of The Mid Ocean Ridge? | Two Plates moving apart from each other causes a little gap and some magma seeps out and creates a ridge
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| How is a volcano which erupts regularly described? | Active
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| If a volcano erupts only infrequently, it's said to be ... | Dormant
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| A volcano which never erupts anymore is called ... | Extinct
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| When 2 plates collide what happens to the heavier plate? | The heavier plate sinks under the lighter plate in an action known as SUBDUCTION
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| Name the type of current responsible for the movement of the crustal plates! | Convection Currents!
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| What is the name given to scientists who study volcanoes? | Vulcanologists
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| Name the rock type formed by the molten lava which flows out during a volcanic eruption | Igneous
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donnacha oc
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