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.

[EX Q]: Question: Dwayne Johnson is weaker than Kevin Hart because he exercises less and therefore his muscles have grown 
 Answer: smaller.
[EX A]: Exercising muscles increases their size, and bigger muscles have greater strength.

[EX Q]: Question: If Mona is adjusting the pH levels of her fish tank and she makes the pH lower, what happens to the baseness of the water? 
 Answer: lower
[EX A]: The higher the pH value is, the stronger the base.

[EX Q]: Question: Henry noticed that his piece of cake was lighter than his piece of butter. The cake was _____ dense. 
 Answer: less
[EX A]:
A given volume of a denser substance is heavier than the same volume of a less dense substance.