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: Alkaline earth metals are what color? Answer: silvery grey
[A]: Alkaline earth metals are silvery grey color.


[Q]: Question: What delivers natural gas from rock that might not otherwise be obtainable? Answer: fracking
[A]: Fracking delivers natural gas from rock that might not otherwise be obtainable.


[Q]: Question: What word do get from the arabic al-qili, meaning “ashes of the saltwort plant from salt marshes”? Answer: alkali
[A]:
The word alkali comes from the arabic al-qili, meaning “ashes of the saltwort plant from salt marshes”.