There are three main types of plate boundary: divergent, convergent and transform. Plates move away from one another at divergent boundaries. This happens at mid-ocean ridges. Plates move towards one another at convergent boundaries; one plate is forced below another in a process called subduction.
The skin of a Concord grape is typically dark blue or purple, and often is covered with a lighter-coloured epicuticular wax bloom that can be rubbed off. It is a slip-skin variety, meaning that the skin is easily separated from the fruit. Concord grapes have large seeds and are highly aromatic.
Concord, Contra Costa County Sales Tax Rate. Details. The sales tax in Concord is 8.75%, which is higher than average for cities in Contra Costa County (8.25%) and higher than average for California (7.75%). Concord is one of 40 cities in Contra Costa County with a distinct sales tax as listed by the California Board of Equalization.