What is an example of biological augmentation this is being used today?

The answer is an example of how bio augmentation has improved an environment, is in the coke plant wastewater in China. The process of adding cultured microorganisms into the subsurface for the purpose of biodegrading precise soil and groundwater contaminants is called Bio augmentation. 

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.