For your questions:
-
Which symbol is always required in every flowchart?
- The correct answer is terminal. Terminal symbols (usually ovals) indicate the start and end points of the flowchart.
-
If an algorithm behaves differently for adults and children, which symbol should be used?
- The correct answer is decision. Decision symbols (usually diamonds) are used to represent branching points in a flowchart, where the algorithm can take different paths based on conditions (e.g., whether the subject is an adult or a child).