The age of a fossil can be determined usingGroup of answer choicesradiometric datingNonespeedometricpediometric

Step 1: Identify the Correct Answer

The question asks about determining the age of a fossil and provides various options. The commonly accepted method for dating fossils is by using radiometric dating.

Step 2: Analyze the Options

1. Radiometric Dating: This method measures the decay of radioactive isotopes in rocks and fossils to determine their age.
2. Speedometric: This term is not typically used in the context of dating fossils.
3. Pediometric: There is no widely accepted method called pediometric for dating fossils.
4. None: This option suggests that none of the given answers are correct, which is not the case here.

Step 3: Conclusion

Based on the analysis, the most accurate and scientifically recognized method for determining the age of a fossil is indeed radiometric dating.

Final Answer

Radiometric dating is the correct choice for determining the age of a fossil.