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 Q]: Question: Dean wants his solution to be as acidic as possible, so his concentration of hydrogen ions will be 
 Answer: higher
[EX A]: With a higher concentration of hydrogen ions, a solution is more acidic but has a lower pH.

[EX Q]: Question: Paul started at the base of a mountain and climbed to its peak. The sky was clear and the sun was beating down on him all day. However, he noticed there was a clear temperature difference between the surface's temperature and the temperature at the top of the mountain peak. Where would he feel more heat? 
 Answer: Surface
[EX A]: The surface is heated by the Sun and some of that heat radiates back into the air. This makes the temperature higher near the surface than at higher altitudes.

[EX Q]: Question: As you travel through the ozone layer the temperatures become 
 Answer: higher
[EX A]:
The stratosphere contains the ozone layer, the temperatures increase as altitude increases.