Which of the following statements about perspective and perception in geography is false? a. geographers use perspective to them organize and categorize the world. b. it is important to view the world geographically from only one perspective. c. perspectives geographers examine patterns in the world. d. regions and mental maps can vary according to each person’s perception.

B it is never "important to view the world geographically from only one perspective." If one viewed the world from one perspective only, innovation in the field of geography necessarily couldn't exist; for, how else can one innovate in a field without viewing this field differently? 

As a general helper for multiple choice: when a question, that deals with subjective content, lists answers with phrases which include words such as "only," "always," "never," or any such definitive terms, it is usually incorrect. When dealing with subjective matters (such as perception, unless dealing with a specific person's perception(s)), one can never definitively label an answer as completely correct, one can only infer. 

Nation of conflicting ethnic groups

Answer volcanic eruptionsseismic waves from earthquakes;