instruction:
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: What forms when nitrogen and oxygen combine at high temperatures? Answer: nitrogen oxide
answer:
Nitrogen oxide form(s) when nitrogen and oxygen combine at high temperatures.


question:
Question: What is a winding ridge of sand deposited by a stream of meltwater called? Answer: esker
answer:
A(n) esker is a winding ridge of sand deposited by a stream of meltwater called.


question:
Question: Different media affect what property of light? Answer: speed
answer:

Different media affect the speed of light.