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 is the term for the affected factor in an experiment? Answer: dependent variable
[EX A]: Dependent variable is the term for the affected factor in an experiment.

[EX Q]: Question: What connection is required for a newborn baby to begin breathing? Answer: connection to the placenta
[EX A]: A connection to the placenta is required for a newborn baby to begin breathing.

[EX Q]: Question: In their pure form, all elements have an oxidation number of what? Answer: zero
[EX A]:
In their pure form, all elements have an oxidation number of zero.