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 process is most responsible for the extinction of most species of plants and animals that have lived on Earth? Answer: environmental changes
[EX A]: Environmental changes is most responsible for the extinction of most species of plants and animals that have lived on earth.

[EX Q]: Question: What disease is unpreventable in the type one form but may be prevented by diet if it is of the second type? Answer: diabetes
[EX A]: Diabetes is unpreventable in the type one form but may be prevented by diet if it is of the second type.

[EX Q]: Question: What phase is pure chlorine present as? Answer: gas
[EX A]:
Gas phase is pure chlorine present as.