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 Input:
Question: Keith is showering, and is washing himself using a bar of soap, and then again with a loofah. Keith's skin will get better exfoliation, due to the greater friction, when he washes his body using the 
 Answer: loofah

Ex Output:
Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.


Ex Input:
Question: Allen is riding his bike on a path. The course ends up 1000 feet lower above sea level compared to the beginning. At which point is the air resistance lower? 
 Answer: at the beginning

Ex Output:
At higher elevations, there is less air to press on a given area.


Ex Input:
Question: If a dog is extremely fit and healthy breeders will want it to have 
 Answer: more offspring

Ex Output:

Genotypes with greater fitness produce more offspring and pass more copies of their alleles to the next generation.