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.
--------
Question: Question: Where is the fruiting body normally produced in relation to the food source? Answer: at the surface

Answer: At the surface is the fruiting body normally produced in relation to the food source.


Question: Question: Why do birds need a light-weight body? Answer: to stay aloft

Answer: Birds need a light-weight body for to stay aloft.


Question: Question: What type of contamination causes almost 90% of diarrheal disease worldwide? Answer: water supply contamination

Answer:
Water supply contamination type of contamination causes almost 90% of diarrheal disease worldwide.