Check out example codes for "how to change scenes in unity". It will help you in understanding the concepts better.
Code Example 1
using UnityEngine.SceneManagement; SceneManager.LoadScene('Scene');
Code Example 2
Code Example 3
using UnityEngine.SceneManagement; int buildIndex = 0; //Load the scene with a build index SceneManager.LoadScene(buildIndex);
Code Example 4
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