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: A small container that has 100 hydrogen ions is sitting near a larger container that has 2 hydrogen ions. The solution in the larger container is 
 Answer: less acidic.
[EX A]: With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.

[EX Q]: Question: Mike wants his voice to travel faster, so he will speak in a room that is 
 Answer: warmer
[EX A]: For a given medium such as air, sound has a slower speed at lower temperatures.

[EX Q]: Question: The population in Milo's city has been increasing recently. What will happen to the city's level of water scarcity? 
 Answer: increase
[EX A]:
Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.