Young woman
Hope this will help
Answer:
radiometric dating
Explanation:
Some minerals in rocks and organic matter for example bones and shells can contain radioactive isotopes. Any of parent and daughter isotopes in a sample can be measured and used to determine their age. This is known as radiometric dating.
Answer:
2000
Explanation:
25000 multiplied by 90% then the answer would be deducted to 25000
