nanotech - the first link you posted has 9 layers - count them! (exosphere, thermosphere, mesosphere, stratosphere, tropshere, mesopause, stratopause, tropopause and ozone layer) and the second one you posted has 6, the Troposhpere, stratosphere, mesosphere, thermosphere, ionosphere and exosphere (as it states in the text, the Ozone layer forms a part of the stratosphere, and is not considered a layer in the same way as the others are). I can point you to a number of equally arbitrary web pages that will label ordinally (and equally arbitrarily) what is essentially a continuum of states merging into a single entity. But we're not interested in facts here, right? Just what fits the details as described in a holy book.
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