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: Leo notices a large amount of stored glucose in his cell. Ray notices zero stored glucose in his cell. Whose cell likely underwent more photosynthesis? 
 Answer: Leo
answer:
As photosynthesis increases, the amount of stored glucose in the guard cells increases.


question:
Question: A city will grow larger when the number of people who are there 
 Answer: grows
answer:
More people also means more clearing of land for agriculture and development.


question:
Question: If you rub your hands together slower than before your hands will feel 
 Answer: colder
answer:

Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.