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: Gina has longer fingernails than John. Who has more cells on their nails? 
 Answer: Gina
answer:
As the nail grows, more cells are added at the nail bed.


question:
Question: John was building a circuit in the electrical room when he noticed something. The more resistors he removed, the level of resistance would 
 Answer: Decrease
answer:
As more resistors are added in series, the total resistance of the circuit increases.


question:
Question: If the people in Mary's country start to produce more greenhouse gases from driving cars, what will happen to the greenhouse effect in their country? 
 Answer: increase
answer:

An increase in greenhouse gases leads to greater greenhouse effect.