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.

Fact: Water can make soil from rocks. 
Question: What causes rocks to be worn into soil?
Water.

Fact: Alternation of generations allows for creating young by asexual and sexual means. 
Question: What allows for an organism to create young by sexual and asexual means?
alternation of generations.

Fact: if an animal or plant becomes too cold then they will die. 
Question: what will die if they become too cold?

animal or plant.