UPS Package Handler. 1  Unload truck by putting boxes on to conveyor properly so scanner can scan item. 2  Sort boxes by color code, zip code, and area code to different conveyors.  Load [company name] trucks by sorting its number code to the correct area.
The Precambrian or Pre-Cambrian; sometimes abbreviated pÐ is the largest span of time in Earth's history before the current Phanerozoic Eon, and is a Supereon divided into several eons of the geologic time scale.he Precambrian Supereon is divided into three eons: the Hadean (4500-3950 Ma), Archean (4000-2500 Ma) and Proterozoic (2500-541.0 Â± 1.0 Ma). See Timetable of the Precambrian. 1  Proterozoic: this eon refers to the time from the lower Cambrian boundary, 541.0 Â± 1.0 Ma, back through 2500 Ma.
It is not known when life originated, but carbon in 3.8 billion year old rocks from islands off western Greenland may be of organic origin. Well-preserved bacteria older than 3.46 billion years have been found in Western Australia. Probable fossils 100 million years older have been found in the same area.There is a fairly solid record of bacterial life throughout the remainder of the Precambrian.elatively little is known about the Precambrian, despite it making up roughly seven-eighths of the Earth's history, and what is known has largely been discovered from the 1960s onwards.