Scientists can determine if oxygen existed in Earth’s Archean atmosphere by looking for oxidized iron in rock. In the beginning, there was only a little to no oxygen in the atmosphere. The oxygen that are being produced by cyanobacteria is only enough for the weathering process. There will only enough oxygen that shall remain in the atmosphere when the rocks at the surface are properly and adequately oxidized. However, as time goes by, evidences said that the amount of oxygen in the Archean atmosphere is actually increasing in a slow steady pace.
War: World War<span> 1 - </span>WW1<span> - </span>cartoons<span> from Punch magazine. ... "I wonder if </span>he<span> would .... "Have you ever contemplated what would happen to </span>us<span> all should the enemy .... </span>President<span> Wilson (quitting America in his fourteen-League-.</span>
Answer:
Even though philosophy was not particularly popularized at the time period that belonged to ancient Egypt, as the people were mainly focused on religious aspects of existential life, there was still a number of philosophers, such as Ptahhotep. It is thought that these great thinkers might have even went on to influence ancient Greek philosophy, with Greeks travelling all the way from Athens to Cairo to try and seek out what this ancient civilization had to say about philosophy.
As for writing, the ancient Egyptian written language was very hard and complicated, so most of the popultion did not actually get to learn it. However, writing was still crucial to a progressive society, even at these times, and so a group of people belonging to the working class called scribes were the ones who did most of the writing. Scribes were very usefull and had various jobs, but their main purpose was to copy down everything the Pharoah says on scrolls made out of leed.
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I believe the <span>Barbarian Invaders </span>
