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: Someone that never works out will likely have _____ muscles than someone who lifts weights at home all day. 
 Answer: smaller
[A]: Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.


[Q]: Question: John went to the doctor one day and was told they caught his cancer really late. What does this mean about the ease with which the cancer is treated? 
 Answer: harder to treat
[A]: The sooner cancer is detected the easier it is to treat.


[Q]: Question: Rich was examining a cliff face. Which part of the cliff is older, geologically speaking? 
 Answer: the base
[A]:
The upper rock layers are much younger.