If Karel is facing North, what direction will Karel face after executing two left turns?

When Karel is initially facing North, turning left will cause Karel to face West after the first turn. A second left turn from West would then orient Karel to face South. Therefore, after executing two left turns, Karel will be facing South.

The correct understanding here hinges on knowing the relationships between cardinal directions and how Karel's movements affect its orientation. Each left turn effectively rotates Karel 90 degrees counterclockwise from its previous direction. Starting North, the first left turn shifts Karel to West, and the second left turn shifts it again to South. The progression of these turns is crucial in determining Karel's final facing direction.