Mainly for breathing and to support burning.
Not sure about ancient usees, but today oxygen is used for oxygen therapy- medically. As well as at Oxygen bars for recreation.
Iron was used for Weapons and Shields also for Armor.
Glycolysis is considered an ancient process because prokaryotic cells (organic molecules) were the first to undergo this process. It is an inherited process from our ancestor cells. It can be used with no oxygen, or oxygen. Before, when the atmosphere did not have any oxygen, this was the only way to go through the metabolic process.
Brooches were used to pin and hold together clothing. Brooches are basically like safety pins but from Ancient Greece times.
Salt
Not sure about ancient usees, but today oxygen is used for oxygen therapy- medically. As well as at Oxygen bars for recreation.
autotrophic prokaryotes!
Egypt, in ancient times.
The time-measuring devices used in ancient times include chronometers and hourglasses. These were commonly used by explorers in their voyages.
In Ancient Times
in ancient times
In the ancient Egyptian times
In ancient times because there was not much metals discovered they had to use titanium for poo.
In ancient times buttons were used for decorative purposes on clothing and as garment fasteners.
Bows are used to hunt but in ancient times it was used for war.
Writing was used in ancient times for the same reasons it is used today---to communicate to preserve and to educate.
In ancient times a well designed and attractive piece of pottery was often used for decorative purposes. It could be used to display flowers for example.