Answer is : it’s been ok , i’m doing math right now . how’s yours going
Cyanobacteria use water, carbon dioxide, and sunlight to create their food, and expel oxygen as a by-product. The real significance of stromatolites is that they are the earliest fossil evidence of life on Earth. ... They were the first known organisms to photosynthesis and produce free oxygen.
Mercenaries were groups of people that pretty much had no loyalty to a single nation. The fought along with nations that paid them (roman empire in this case).
<h3>It was a frigid day in occupied Poland, and for all Shmuel Beller knew, it could be his last. As Russian forces advanced toward Auschwitz, Beller and other prisoners had been told by their captors that they had to leave the death camp. So he ran into one of the storage facilities and rifled through a pile of clothing—the belongings of some of the 6,000 Jews gassed each day at the camp. Finally, he found what he was looking for: a pair of leather shoes.</h3>
<h2>please mark in brain list </h2>
