What do all scientists call the huge slabs that form the earths crust?

Tectonic Plates

Explanation:

Plate tectonics are large semirigid slabs of rock that make up the earth's crust. The Earth is divided into fourteen main tectonic plates, which move slowly and continuously over the mantle, and can approach or move away from each other.

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.

the answer would more than likely a.)falling crop prices  

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