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.

Input: Consider Input: Question: When we pack a fewer things into a box it becomes 
 Answer: less dense

Output: The more tightly packed the particles inside the material are, the more dense we say they are.


Input: Consider Input: Question: Shane spent his live in the country and had no respiratory conditions, then moved to the city and had several develop. Shane's conditions are likely due to being 
 Answer: close to a city

Output: Certain respiratory conditions can be made worse in people who live closer to or in large cites.


Input: Consider Input: Question: An inefficient system will have _____ wasted energy than a highly efficient one. 
 Answer: more


Output: The greater the wasted output energy, the less efficient the system.