Answer the following questions in three or four sentences.
a. Why is the Isthmus of Panama important?
b. What are Thematic maps?
c. What are conventional symbols?
Answers
a) The formation of the Isthmus of Panama - a strip of land that separates the Caribbean Sea from the Pacific Ocean, and connects North and South America-- is considered one of the most important geologic, oceanographic, and biogeographic events ever, but the exact timing of the final closure of the Isthmus has become controversial.
b) A thematic map shows the spatial distribution of one or more specific data themes for selected geographic areas. The map may be qualitative in nature ( e.g. , predominant farm types) or quantitative ( e.g. , percentage population change).
c) A conventional symbol is a symbol that is widely accepted interpretation. The various features shown on a map are represented by conventional signs or symbols. For example, colors can be used to indicate a classification of roads.
Answer:
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