Can you explain top 5 main responsibilities of Scrum Master?

The Scrum Master top5 responsibilities are as follows:
1- Facilitating Sprint planning, Capacity planning, Retrospective and Sprint Reviews
2- Assisting the product owner with the backlog tracking and ensuring cross-team coordination
3- Maintaining relevant metrics to guide the scrum team during Sprints
4- Managing backlog risks and issues and providing appropriate issues escalation to the product owner along with removing impediments to the team’s progress
5- Liaising between developers and the Product Owner