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The Earth has existed in roughly its present form for about 4.5x109 years.

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12y ago

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What time reference best fit the concept of geologic time?

A) a millionD. A million or more years


What best fits the concept of geologic time a dozen years a thousand years a hundred years or a million or more years?

A million or more years best fits the concept of geologic time. Geologic time spans millions to billions of years and is used to describe the immense length of time over which Earth's processes have occurred, such as the formation of mountains, evolution of species, and movement of continents.


What time periods fit the concept of geologic time?

Geologic time consists of eons, eras, periods, epochs, and ages. These measure periods of billions or millions of years.


What time references best fits the concept of geologic time a dozen years a hundred years a thousand years a million or more years?

a million or more years


Approximately how many years does the earth's geologic time span?

4.6 billion years


How many years does the earths geologic time scale span?

4.6 billion years


Approximately how many years does the Earth's geologic time scale span?

The Earth's geologic time scale spans about 4.6 billion years, from the formation of the Earth to the present day.


Would geologic time be more like 12 years 100 years 1000 years or 1 million years?

Geologic time is very long, so a million or more years is the best choice.


When did geologic time begin?

If your question is when the earth was created, then the answer is 4.6 billion years ago. plate tectonics started to happen a few billion years later when the earth cooled enough to form a crust.


What is the shortest piece of geologic time?

The shortest piece of Geologic time is the Holocene Epoch in the Cenozoic Era>


What does KY mean in terms of geologic time?

k = thousands, y = years. 10Ky = 10,000 years


Is one million years sufficiently long to be considered a period of geologic time?

Yes, one million years is a significant period in geologic time. It is equivalent to 1/485th of the age of the Earth (4.54 billion years). In the geologic time scale, it falls within the Quaternary period, which includes the most recent 2.6 million years of Earth's history.