What is and example of a geographic pattern

Definition of a Geographic Pattern: A geographic pattern is a term used as a general descriptor for lesions in which large areas of one colour, histologic pattern or radiologic density. Variably scalloped borders sharply interface with another pattern, colour or density, creating something like a national boundary and/or coastline.

Example: An example of a geographic pattern can be applied to nearly everything on Earth. Animals and plant species, disease infections, weather patterns, and man-made structures are an example of this.

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answer; (a) he was a u.s senator for 38 years;

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.