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: Fred has an isotope that decays slowly. What is likely true about it? 
 Answer: it can be used to date older specimens

A: Because these isotopes decay more slowly, they can be used to date much older specimens.
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Q: Question: If Jim is tuning his shortwave radio and he decreases the wavelength, what happens to the frequency? 
 Answer: increases

A: As wavelength increases, frequency decreases.
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Q: Question: Henry noticed that his piece of cake was heavier than his piece of butter. The cake was _____ dense. 
 Answer: more

A:
A given volume of a denser substance is heavier than the same volume of a less dense substance.
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