There are more carbon compounds than there are compounds of all other elements combined. The study of carbon compounds, both natural and synthetic, is called organic chemistry. Plastics, foods, textiles, and many other common substances contain carbon.
In a nutshell, Google Backup and Sync is a combination of Google Drive and Google Photos. There is no need to use two separate apps, as you can do it all with a single tool. Though, it is missing an easy way to restore the backup.
In this document. Key classes. Since Android 6.0 (API 23), Android has offered the Auto Backup for Apps feature as a way for developers to quickly add backup functionality to their apps. Auto Backup preserves app data by uploading it to the user's Google Drive account, where it is protected by the user's Google account credentials.