You can take snapshots of EC2 instances which creates a point-in-time copy of the instance.
Snapshots are stored on S3
If you make periodic snapshots of a volume, the snapshots are incremental, which means that
only the blocks on the device that have changed after your last snapshot are saved in the
new snapshot
There is no backup console to take full and incremental backups
There is no way of taking application-consistent backups using any AWS tools
Cross Region Replication is used to replicate Amazon S3 buckets are across regions