Living things contain `C^(12)` and `C^(13)`. `C^(12)` is stable and `C^(13)` decays and declines in proportional quantity. The techinique that used this particles for determining the age of fossils skeletons, old trees, and dinosaurs is called

Options

A. `C-12` dating
B. Radiocarbon dating
C. Carbon age
D. Fossil carbon

Answer

To solve the question regarding the technique used to determine the age of fossils, skeletons, old trees, and dinosaurs based on the isotopes of carbon, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Isotopes of Carbon**:
- Living organisms contain two isotopes of carbon: Carbon-12 (C-12) and Carbon-13 (C-13).
- C-12 is stable, while C-13 is radioactive and decays over time.

2. **Understand the Decay Process**:
- The decay of C-13 occurs at a known rate, which allows scientists to measure the remaining amount of C-13 in a sample.
- This decay can be used to estimate how long it has been since the organism died.

3. **Recognize the Application**:
- The technique that utilizes the decay of carbon isotopes to determine the age of organic materials is known as radiocarbon dating.
- This method is particularly useful for dating materials that are up to about 50,000 years old.

4. **Conclude with the Correct Term**:
- Therefore, the technique used for determining the age of fossils, skeletons, old trees, and dinosaurs is called **radiocarbon dating**.

### Final Answer:
The technique used for determining the age of fossils, skeletons, old trees, and dinosaurs is called **radiocarbon dating**.

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