Numerical age dates based on radioactivity are very important for studying Precambrian geologic history because fossils are rare or absent.

Name: Numerical age dates based on radioactivity are very important for studying Precambrian geologic history because fossils are rare or absent.
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Precambrian rocks are very old and fossils are rare or absent. Radioactivity dating provides numerical age dates that are crucial for understanding the timeline of Precambrian geologic history.

Numerical Age Dates Based on Radioactivity Are Very Important for Studying