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What is the nature of molecular motion at absolute zero?
Billion Years
A period of time equal to 1,000 million years, often used in geological and astronomical contexts to describe the age of Earth or the universe.
Mineral Grains
individual particles or crystals within a rock, defining its texture and often determining its properties and classification.
Cenozoic
The current geological era, beginning 66 million years ago, marked by significant development of mammals.
Geologic Timescale
A chronological dating system used by geologists and other scientists to describe the timing and relationships of events in Earth's history.
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