Explain why the graph shown below does NOT have an Euler circuit. 
Definitions:
Fishbone Diagram
A visual tool used for systematic problem analysis, also known as the Ishikawa diagram, it helps identify, explore, and display the possible causes of a specific problem.
Flow Chart
A diagram that represents a process, showing the steps as boxes of various kinds, and their order by connecting them with arrows.
Position Chart
A visual representation that outlines the structure of an organization and the relationships and relative ranks of its parts and positions/jobs.
Pattern Diagram
A visual representation that outlines the relationship or structure among various elements of a system or process, used for analysis or design purposes.
Q10: Find the constraint inequalities and the profit
Q14: Two researchers run identical experiments except researcher
Q17: What is the lower class limit of
Q20: Sketch the graph of the inequality 5x
Q47: Given the set of data below,
Q54: Use Kruskal's algorithm for minimum-cost spanning trees
Q70: A _ graph would most appropriately represent
Q71: The three most commonly used graphs in
Q71: Apply the critical-path scheduling algorithm to
Q85: When Kruskal's algorithm is used to find