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.
Sync uses a single folder to keep the feature simple to understand and use. Mozy online backup can protect every folder on your whole computer, so having Sync use a single folder is a straightforward way to ensure compatibility between backup and file synchronization.