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.

Q: Question: If Mona is putting together a new crib and she wants to have a harder time screwing the pieces together, what should she look for in a screw? 
 Answer: farther threads

A: Therefore, if the threads on a screw are closer together, you need to apply less force to penetrate the wood or other object.
****
Q: Question: A large amount of force has _____ acceleration than a smaller amount of force 
 Answer: less

A: The smaller its mass is, the greater its acceleration for a given amount of force.
****
Q: Question: If Jim's country increases use of fossil fuels, what will happen to the amount of pollution it produces? 
 Answer: increase

A:
Because richer nations use more fossil fuels, they also cause more air pollution and global warming than poorer nations do.
****