Answer:
1. It can create obstacles for the characters.
2. It can motivate the events of a story
Step-by-step explanation:
A setting can create obstacles for the characters such as if there is a major storm the characters would have to face the storm and it would be an obstacle for them.
A setting can also motivate the events of a story because sometimes without the setting and period of time, the whole story would fall apart (for example: if your story was about things happening to people in the 1950s and your setting wasn't in the 1950s then there goes your whole story)