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.

Example Input: Question: If Mona is producing sound waves by listening to her radio at night and she turns down the volume, what happens to the amount of energy being produced by the radio? 
 Answer: decreases
Example Output: A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.

Example Input: Question: Allen is riding his bike on a path. The course ends up 1000 feet lower above sea level compared to the beginning. At which point is the air resistance lower? 
 Answer: at the beginning
Example Output: At higher elevations, there is less air to press on a given area.

Example Input: Question: Jimbo was sailing in the ocean when he a few glaciers around his ship. The next year he sailed back to that same spot and noticed that there were many more glaciers around the ship. If there are more glaciers, what does that mean about the sea level? 
 Answer: it's lower
Example Output:
An increase in glaciers lowers sea level and a decrease in glaciers raises sea level.