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 process by which organisms change in small ways over time? Answer: microevolution
[EX A]: Microevolution is the process by which organisms change in small ways over time.

[EX Q]: Question: Where do mushrooms get their energy? Answer: decomposing dead organisms
[EX A]: Mushrooms get their energy from decomposing dead organisms.

[EX Q]: Question: Molds, pollen, and pet dander are examples of air pollution with what type of source? Answer: biological
[EX A]:
Molds, pollen, and pet dander are examples of air pollution with biological sources.