Answer:
In geology, the term sial refers to the composition of the upper layer of Earth's crust, namely rocks rich in aluminium silicate minerals. It is sometimes equated with the continental crust because it is absent in the wide oceanic basins, but 'sial' is a geochemical term rather than a plate tectonic term.
Explanation:
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They are formed by subduction
A igneous rock called Phanertic.
Go to Caribbean islands or go to the US. When the get a paycheck they send the money home. If you lived in the Caribbean you might only see your father 4 months out of the year.<span>
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