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.

[Q]: Question: Why did people stop adding lead to gasoline? Answer: environmental pollution
[A]: People stopped adding lead to gasoline because of environmental pollution.


[Q]: Question: Unlike wild animals, what type of species are genetically uniform, making them more vulnerable to die-out from disease? Answer: domestic species
[A]: Unlike wild animals, domestic species type of species are genetically uniform, making them more vulnerable to die-out from disease.


[Q]: Question: Volume is another way of measuring what? Answer: material
[A]:
Volume is another way of measuring material.