What type of plate boundary could form a mountain chain of sedimentary rock? . a. divergent boundary of oceanic crust and continental crust . b. convergent boundary of two continental crusts . c. convergent boundary of oceanic crust and continental crust . d. divergent boundary between two oceanic crusts

The answer to the question above is the second choice, "convergent boundary of two continental crusts". This type of convergence creates some of the world's largest mountain ranges. Magma cannot penetrate the thick crust. Therefore, there are no volcanoes. 

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Had a democratic form of government