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: When we pack a fewer things into a box it becomes 
 Answer: less dense
answer:
The more tightly packed the particles inside the material are, the more dense we say they are.


question:
Question: Terry replaces cut down trees in the forest. The air is now _____ dry. 
 Answer: less
answer:
With fewer trees, the air is drier and droughts are more common.


question:
Question: Carlos transferred his gas to a large tube, and he knows that as the particles try to move, there will be movement that is 
 Answer: greater
answer:

When a gas is squeezed into a smaller volume, the particles have less space to move.