instruction:
Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.
question:
Fact: a camera records light. 
Question: What records light?
answer:
a camera.


question:
Fact: The more carbon dioxide a plant receives, the more likely it is to suffer water loss. 
Question: The more carbon dioxide a plant receives, the more likely it will suffer what?
answer:
water loss.


question:
Fact: Geologists use radioactive dating to determine the age of rock layers. 
Question: What do geologists use to determine the age of rock layers?
answer:

Radioactive dating.