Pointâofâsale transactionsâi.e., swiping a card at the time of purchaseâsecurely encrypt the. credit card data. Cards placed on file for future transactions, such as for express checkâout, use. tokens to access card data.
The outermost layer of Earth is the atmosphere. I say the atmosphere is the outermost layer, because it is as much a part of the of our planet as the atmosphere of other planets is a part of their definition.
What is the innermost layer of the earth which is made up of solid metals? We are not sure whether the core of the earth is solid or not, therefor the innermost layer must be either the core, or the layer next to the core. Edit Share to: