In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Q: Question: When a rubber band is relaxed, its elastic force 
 Answer: decreases

A: The elastic force increases the more the material is stretched or compressed.
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Q: Question: Ian decreases the pH of his water. Its pH value becomes more 
 Answer: acidic

A: The more basic a solution is, the closer its pH value will be to 14.
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Q: Question: Ian celebrated his 8th birthday. He is now _____ likely to contract a disease. 
 Answer: less

A:
Many diseases become more common as people grow older.
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