Construct a model of geological time. In this model, length will be used to represent time at the scale 1 mm = 1 million

[answerhappygod]

Construct a model of geological time. In this model, length will
be used to represent time at the scale 1 mm = 1 million years.
Please explain step by step how you caculated it before
constructing the model.
Enter the position of the start of each geological
period/era on your model. Express your answer in centimetres (cm)
"back in time" with up to 2 significant figures after the decimal
point.
The Quaternary Period can be subdivided into 2 epochs - the
Pleistocene and the Holocene, with the Holocene beginning 11 700
years ago. More recently, geologists have identified a third epoch
in the Quaternary Period. This has been called "the Anthropocene"
and refers to the time after which humans have had a major impact
on Earth's systems. In a recently published paper, Elias (2018)
argued that the start of the Anthropocene should be placed in the
1950s.
Calculate the position of the start of the Anthropocene
(use 1950) on your model. Express your answer in centimetres, using
scientific notation, with one significant figure after the decimal
point (1 credit):