Acidity is commonly measured using the pH scale. Pure water has a pH of about 7, which is considered neutral. A substance with a pH less than 7 is considered to be acidic, while a substance with a pH greater than 7 is considered to be basic or alkaline. The lower the pH, the more acidic the substance.
History and Identity. Who are the Assyrians? Simply put, the modern-day Assyrians are Semitic people, and the direct descendants of the ancient Assyrian and Babylonian people, including their predecessors the Akkadians and Sumerians, and have a history spanning over 6760 years.
In paleoanthropology, the recent African origin of modern humans, or the out of Africa theory (OOA), is the most widely accepted model of the geographic origin and early migration of anatomically modern humans.owever, the rate of interbreeding was found to be relatively low (1â10%) and other studies have suggested that the presence of Neanderthal or other archaic human genetic markers in modern humans can be attributed to shared ancestral traits originating from a common ancestor 500,000 to 800,000 years ago.