Wind is a direct result of this and also weather I think
The density of water is approximately 1.0g/mL
6.7g * 1 mL/ 1g = 6.7 mL
The operon is effectively the center of transcriptional control. In addition to its main structural genes, the operon houses an operator and a promoter. In front of the promoter lies a regulatory gene that produces repressor proteins. When a repressor is in its active state, it binds to the operator.
Hope this helped.