Final answer:
Perceived difficulty is the experience that creates the psychological sense of being challenged in an environmental challenge.
Step-by-step explanation:
The experience that creates the psychological sense of being challenged in an environmental challenge is perceived difficulty.
When a person perceives a task or situation as difficult, it triggers the psychological experience of being challenged. This perception of difficulty can vary from person to person, as people may have different levels of competence and resources to manage or adapt to the challenge.