instruction:
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.
question:
Question: What is the name given to the use of controlled nuclear fusion as an energy source? Answer: thermonuclear power
answer:
Thermonuclear power is the name given to the use of controlled nuclear fusion as an energy source.


question:
Question: What branch of science is based on the modern atomic theory, which states that all matter is composed of atoms? Answer: chemistry
answer:
Chemistry is based on the modern atomic theory, which states that all matter is composed of atoms.


question:
Question: What helps sound travel in waves? Answer: gases
answer:

Gases helps sound travel in waves.