<span>
A. Moho barrier </span>The Moho<span> is the boundary between the crust and the mantle in the earth.
</span><span>B. Oceanic crust
</span>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
<span>Lower mantle
</span>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.
<span>upper mantle
</span>The upper mantle<span> begins just beneath the crust and ends at the lower mantle.
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Colombia. If you drove from the US to South America, you would be going south. The only North American country bordering South America is Panama, and the only South American country bordering Panama is Colombia.
Answer:
an island
Explanation:
Am island is a landform completely surrounded by water.
