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.
1 The lithosphere is the outermost mechanical layer and is the most rigid layer of the Earth. 2  The lithosphere consists of the crust, and some of the uppermost mantle. 3  The lithosphere averages about 100 km thick.4  It is somewhat thicker beneath continents, and dramatically thinner under mid-ocean ridges.echanical layers differ in their strength or rigidity. These layers do not correspond on a one-to-one basis with the compositional layers. The Earth has five mechanic layers: 1  The lithosphere is the outermost mechanical layer and is the most rigid layer of the Earth.