Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

[EX Q]: Question: What is located beneath the lithosphere? Answer: asthenosphere
[EX A]: Beneath the lithosphere, the asthenosphere is solid rock that can flow.

[EX Q]: Question: Lactic acid fermentation is common in muscle cells that have run out of what? Answer: oxygen
[EX A]: Figure 7.14 Lactic acid fermentation is common in muscle cells that have run out of oxygen.

[EX Q]: Question: Radiometric dating methods, such as carbon-14 dating depend on what type of decay? Answer: radioactive
[EX A]:
The age of a rock in years is its absolute age. The main evidence for absolute age comes from radiometric dating methods, such as carbon-14 dating. These methods depend on radioactive decay.