Which one of the following time references best fits the concept of geologic time?

Question

A. A dozen years
B. A hundred years
C. A thousand years
D. A million or more years

Answer 1

Definitely D.In geologic time one million years is like a day to us.

Answer 2

D.
the earth has been around for around 4.55 billion years so the first 3 can be ruled out because the denominations are too small. A is definitely out because counting in 12s is too difficult and the time ref is too small. D is the best answer because major extinction events happened every few milion years so it is easiest to calculate using millions of years. or more.

Answer 3

E. None of the above.

The geological time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the History of Earth. The table of geologic periods presented here is in accordance with the dates and nomenclature proposed by the International Commission on Stratigraphy, and uses the standard color codes of the United States Geological Survey.

Evidence from radiometric dating indicates that the Earth is about 4,570 million years old (expressed with m.y.a. or "Ma" as in "it dates from 4570 Ma"). The geological or deep time of Earth's past has been organized into various units according to events which took place in each period. Different spans of time on the time scale are usually delimited by major geological or paleontological events, such as mass extinctions. For example, the boundary between the Cretaceous period and the Paleogene period is defined by the extinction event that marked the demise of the dinosaurs and of many marine species. Older periods which predate the reliable fossil record are defined by absolute age.

The largest defined unit of time is the Eon. Eons are divided into Eras, which are in turn divided into Periods, Epochs and Stages. At the same time paleontologists define a system of faunal stages, of varying lengths, based on changes in the observed fossil assemblages. In many cases, such faunal stages have been adopted in building the geological nomenclature, though in general there are far more recognized faunal stages than defined geological time units.

A specific number of years has no bearing on determining units of geological time.

Answer 4

D a million or more years

Answer 5

c.