Answer:
i have not a clue in the world lol
Answer:
Either (1.) Fossils or (2) Radiometric dating.
Explanation:
Fossils are an obvious answer to this, but radiometric dating is the method most scientists use to find the age of rocks. Radioactive isotopes break down predictably, so the farther along this process is, the older the rock is.
Catalase.is an enzyme in the liver that breaks down harmful hydrogen peroxide into oxygen and water.
