Explain the key difference in how `git revert` and `git reset --hard` impact the permanent history of the repository.

The key difference in how `git revert` and `git reset --hard` impact the permanent history of the repository lies in their approach to undoing changes: `git revert` creates new history, while `git reset --hard` rewrites or effectively deletes existing history. `git revert` is a non-destructive operation. When you use `git revert <commit>`, Git creates a brand-new commit, known as a revert commit. This revert commit introduces changes that precisely undo the modifications made in the specified original commit, but the original commit itself, along with all subsequent commits, remains intact in the project's history. The....