What is the theory of tectonic plate???

the theory of plate tectonics is the theory that Earth's outer shell is divided into several plates that move slowly over the mantle, the rocky/molten inner layer above the core. The plates act like a hard and rigid shell compared to Earth's mantle. It is also known that they are split into 7 major plates...

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answer; ///it examines the interaction between genetics and culture in shaping human biology;

answer; collective security;