Perspective is a linear system of spatial alignment which creates an illusion of depth on a two-dimensional flat surface (or on a shallow three-dimensional surface such as a relief carving). Often called Linear Perspective (geometric, mathematical or optical perspective), this system is based on how the human eye sees the world: that is, (1) objects which are closer appear larger, while more distant objects appear smaller;
The answer is a because the major cities were around the yellow river valley
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Article VII stipulated that nine states had to ratify the Constitution for it to go into effect. Beyond the legal requirements for ratification, the state conventions fulfilled other purposes. The Constitution had been produced in strictest secrecy during the Philadelphia convention.
