4,028,000,000 years.
Approximately 343 days, although it can be highly variable (gestation periods up to 375 days have been recorded).
they make up to 1mill up to 3mill - lavender
the same ones as make up you: protons, neutrons, and electrons.
They would make a panorama
The best way to make homemade clay firm is to heat it up. You can heat the clay up in an oven.
Precambrian
The precambrian era lasted from roughly 4.57 Ga to 0.54 Ga before today, equalling about 88 % of Earth's history.
The largest era in Earth's history is the Precambrian, which spans from the formation of Earth around 4.6 billion years ago to the beginning of the Phanerozoic eon around 541 million years ago. The Precambrian makes up about 88% of Earth's history.
There were three geological periods in the Mesozoic Era(251 - 65Ma).The Triassic Period(251 - 199Ma),the Jurassic period(199 - 145Ma) &the Cretaceous Period(145 - 65Ma).
The largest era is the Precambrian, which makes up about 88% of Earth's history. It covers the time from the formation of Earth about 4.6 billion years ago to the beginning of the Paleozoic era around 541 million years ago.
periods make up eras
85% of earths history and the earliest era that exists. bacteria mostly survived then and built up oxygen until a mass extinction.The. Era had many extinctions because of large variations in climate is what mesozoicor cenozoic or precambrian which one
The term "Precambrian" refers to the time period before the Cambrian period, dating back over 4 billion years. The Canadian Shield is composed of some of the oldest rocks on Earth, dating back to the Precambrian era. Its name reflects the ancient age of the rocks and landforms that make up the shield.
The Canadian Shield is known as the Precambrian Shield because it is made up of some of the oldest rock formations on Earth, dating back to the Precambrian Eon. These rocks were largely formed between 4.6 billion to 540 million years ago, before the Paleozoic era began.
Precambrian Cambrian
The major subdivisions are the Precambrian, Palaeozoic, Mesozoic and Cenozoic, which are subdivided into Archean and Proterozoic (Precambrian), Cambrian, Ordovician, Silurian, Devonian, Carboniferous (or Missisipian and Pennsylvanian in the US) and Permian (Palaeozoic), Triassic, Jurassic and Cretaceous (Mesozoic) and Tertiary and Quaternary (Cenozoic). For a graphical representation, see http://geomaps.wr.usgs.gov/socal/geology/geologic_history/images/geologic_time_scale.jpg
The Mesozoic Era occured approximately 252 to 66 million years ago. It is divided into three periods: the Triassic, Jurassic, and Cretaceous periods. This era is known for the dominance of dinosaurs and the rise of mammals and flowering plants.