In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

[EX Q]: Question: What determines the color of visible light? Answer: exact wavelength
[EX A]: Exact wavelength determines the color of visible light.

[EX Q]: Question: Which of the following questions is testable in a scientific investigation? Answer: Are cats more active at night than during the day?.
[EX A]: Are cats more active at night than during the day? of the following questions is testable in a scientific investigation.

[EX Q]: Question: Which trait of particles causes even cold objects to have some thermal energy? Answer: constant random motion
[EX A]:
Constant random motion trait of particles causes even cold objects to have some thermal energy.