TASK DEFINITION: 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.
PROBLEM: Question: What would happen to the atmosphere as Jim climbed higher up a mountain? 
 Answer: it would become less dense

SOLUTION: The density of the atmosphere decreases with an increase in the height above sea level (altitude).

PROBLEM: Question: Carter puts two rocks outside; one is a soft pebble, the other is a solid stone. A year later, he checks on the rocks. The solid stone is still there because it has a resistance that is 
 Answer: greater

SOLUTION: Different types of rocks weather at different rates. More resistant types of rocks will remain longer.

PROBLEM: Question: Dean wants his solution to be the least acidic possible, so his concentration of hydrogen ions will be 
 Answer: lower

SOLUTION:
With a higher concentration of hydrogen ions, a solution is more acidic but has a lower pH.