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Heber Nader ∙
Younger than the rock it intrudes into
The constituent time segments are epochs and periods, which are further divided into ages.
They had little competition from other land dwellers
Are constant
compressional forces
meteorite collision
Uniformitarianism
There is not many remains of the Precambrian time
A 60,000 year old mammoth bone.
It enlarges continental landmasses and forms mountains along the edges of continents.
When the organism is buried in sediment and then dissolved by underground water
Insulating body hair is a characteristics of the layer of the fat beneath the human skin.
Ferns and other plants that grew in swampy forests
folded mountains are produced
because it hiding in the records of the rock