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: Producing light without heat is called what? Answer: luminescence
[EX A]: Producing light without heat is called luminescence.

[EX Q]: Question: The mass of atoms is based on the number of protons and neutrons in what? Answer: nucleus
[EX A]: The mass of atoms is based on the number of protons and neutrons in nucleus.

[EX Q]: Question: Nearly how many millions of people die yearly due to air pollution? Answer: five million
[EX A]:
Nearly five million people die yearly due to air pollution.