Good morning, im dum match the structure in column 1 to the characteristics in column 2. a. moho barrier b. oceanic crust c. upper mantle d. lower mantle where crust meets the mantle thinnest layer located near the outer core layer that moves the crust

A.Moho barrier   The Moho is the boundary between the crust and the mantle in the earth.

B.Oceanic crust 
is the uppermost layer of the oceanic portion of a tectonic plate. The crust overlies the solidified and uppermost layer of the mantle. The crust and the solid mantle layer together constitute oceanic 

Lower mantle 
A large fraction of Earth's interior, from a depth of about 650 km (400 miles) down to 2,900 km (1,800 miles), consists of the lower mantle, which is composed chiefly of magnesium- and iron-bearing silicates, including the high-pressure equivalents of olivine and pyroxene.

upper mantle 
The upper mantle begins just beneath the crust and ends at the lower mantle.

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