The decay of uranium isotopes is used to provide what information about Earths history?

A. Fluctuations in solar radiation
B. The absolute age of rocks
C. Changes on climate over time
D. The diet of ancient animals

Question

The decay of uranium isotopes is used to provide what information about Earths history?

A. Fluctuations in solar radiation 
B. The absolute age of rocks
C. Changes on climate over time
D. The diet of ancient animals

XioGonz · Answer

Um

Radioactive Uranium 238 can be used to estimate the overall age of the earth. The half life of Uranium is 4.5 Billion years old. By measuring that most of the Uranium 238 found are about 50% decayed it is assumed that the Earth is approximately 4.5 billion years old. This gives the an age for the beginning of the earth.--Bing