EARTH SCIENCE
TECTONICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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earthquake
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convection currents (heat)
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volcanoes
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None of the above
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Detailed explanation-1: -These plates move due to convection currents in the mantle . Heat from the core makes magma in the mantle rise towards the crust. As the hot current nears the crust, it begins to cool and sink back towards the core. As the magma sinks, it drags the plates across the surface of the Earth.
Detailed explanation-2: -Convection & Convection Currents Heat from the core and the mantle causes convection currents in the mantle. This is how the heat is transferred, and how the earth’s plates are able to move.
Detailed explanation-3: -The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
Detailed explanation-4: -Convection currents rise and spread below divergent plate boundaries and converge and descend along convergent. The convection currents are sought to be produced by three sources: first the cooling of the Earth’s core, second the radioactivity within the mantle and crust and third through the cooling of the mantle.
Detailed explanation-5: -Heat from the core and the mantle itself causes convection currents in the mantle. Hot columns of mantle material rise slowly. At the top of the asthenosphere, the hot material spreads out and pushes the cooler material out of the way. This cooler material sinks back into the mantle.