Choose the best term to fill the gaps in the passage.

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The image here depicts a convection current below the Earth's surface. The type of boundary shown here is a Response area boundary that results in Response area. The magma reaches the surface because Response area rises and as the magma breaches the crust, Response area emerges.
seafloor spreadingheatlavatransformdivergentmantle

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The image here depicts a convection current below the Earth's surface. The type of boundary shown here is a divergent boundary that results in seafloor spreading. The magma reaches the surface because heat rises and as the magma breaches the crust, lava emerges.