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: Jimmy found a fossil on the beach. He compared it to a fossil in the museum that was much older. Which fossil more likely resembles modern organisms? 
 Answer: beach fossil
[EX A]: In general, fossils in older rocks are less similar to modern organisms.

[EX Q]: Question: If Mona is comparing the erosion rates of two rocks and she notices that granite is softer then marble, which rock will water erode slower? 
 Answer: marble
[EX A]: The water erodes the softer rock faster than the harder rock.

[EX Q]: Question: Dean wants to get a smaller number of isomers to observe, so in order to do so quickly, he takes the number of carbon atoms in a hydrocarbon, and makes them 
 Answer: decrease
[EX A]:
As you increase the number of carbon atoms in a hydrocarbon, the number of isomers quickly increases.