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tectonic plates are blocks of ______ a. magma b. magnetic rock c. asthenosphere d. lithosphere

tectonic plates are blocks of ______ a. magma b. magnetic rock c. asthenosphere d. lithosphere

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Answer #1

A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock,generally composed of both continental and oceanic lithosphere. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest. Plate thickness also varies greatly, ranging from less than 15 km for young oceanic lithosphere to about 200 km or more for ancient continental lithosphere (for example, the interior parts of North and South America).

so the correct answer is d.

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