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: What do craters and rifts become when the fill with water? Answer: lakes
[A]: Craters and rifts become lakes when they fill with water.


[Q]: Question: Carbon dioxide does not rise like other gases because it has a density greater than what? Answer: air
[A]: Carbon dioxide does not rise like other gases because it has a density greater than air.


[Q]: Question: Intestinal cells combine with proteins to create what? Answer: chylomicrons
[A]:
Intestinal cells combine with proteins to create chylomicrons.