Scientists measure the amounts of Uranium-235 and Lead-207 in two different rocks. Which of these statements best explain why scientists can conclude that rock A is younger than ro... Scientists measure the amounts of Uranium-235 and Lead-207 in two different rocks. Which of these statements best explain why scientists can conclude that rock A is younger than rock B?
Understand the Problem
The question is asking which statement supports the conclusion that rock A has a younger age compared to rock B based on the measurements of Uranium-235 and Lead-207. It requires an understanding of radioactive decay and the concept of parent and daughter isotopes.
Answer
Rock A has a higher ratio of parent to daughter atoms.
The final answer is: Rock A has a higher ratio of parent to daughter atoms.
Answer for screen readers
The final answer is: Rock A has a higher ratio of parent to daughter atoms.
More Information
Uranium-235 decays into Lead-207 over time. A higher ratio of Uranium-235 to Lead-207 in Rock A indicates that it is younger than Rock B, as it has more of the parent isotope remaining.
Tips
A common mistake is to assume a lower ratio of parent to daughter isotopes indicates a younger rock, while it actually indicates an older rock.
Sources
- The web page with info on - Brainly - brainly.com
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