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Alenkinab [10]
3 years ago
12

1. Which layer of the Earth do convection currents occur in? (1pt)

Geography
1 answer:
kykrilka [37]3 years ago
8 0
1) Convection currents<span> in the magma drive plate tectonics. Heat generated from the radioactive decay of elements deep in the interior of the </span>Earth<span> creates magma (molten rock) in the aesthenosphere. The aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the </span>Earth<span>that extends to 2900 km.
2) </span><span>The plates on the </span>Earth's<span> surface would be floating on top of the water. ...</span>Convection currents<span> in the liquid mantle </span>cause<span> the plates to </span>move<span>. At the top of the mantle, the rock encounters the thin </span>crust<span>, and, as it pushes it aside, lava flows out from the mantle to form new oceanic </span>crust<span>.</span>
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