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: comparators, flats, and microscopes could be used for observing materials up close. 
Question: comparators, flats, and microscopes could be used for observing materials how?

Answer: up close.


Question: Fact: Playing is one of many ways animal improve ability to survive and thrive. 
Question: Playing is one of many ways animal improve ability to what?

Answer: survive.


Question: Fact: a plant requires electromagnetic energy to grow. 
Question: What type of energy does a plant need to grow?

Answer:
electromagnetic.