instruction:
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.
question:
Question: Fred has an isotope that decays slowly. What is likely true about it? 
 Answer: it can be used to date older specimens
answer:
Because these isotopes decay more slowly, they can be used to date much older specimens.


question:
Question: Ian is digging in his garden, and admires the shiny pebbles sitting in the yard, as he digs a hole and finds more rocks, he knows that the first ones he found are 
 Answer: younger
answer:
Older rocks are at the bottom and younger rocks are at the top.


question:
Question: When plants have very little sun they make 
 Answer: less glucose
answer:

As photosynthesis increases, the amount of stored glucose in the guard cells increases.