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.

Input: Consider Input: Question: Dean is trying to slide a rock down a hill using less input force. The slope of the hill that will be ideal for Dean is one that has a slope that is 
 Answer: gradual

Output: The more gradual the slope of the inclined plane, the less input force is needed and the greater the mechanical advantage.


Input: Consider Input: Question: By removing a pound of salt from a bucket of fresh water, could you cause the density of the water to 
 Answer: decrease?

Output: Water density increases as salinity and pressure increase, or as temperature decreases.


Input: Consider Input: Question: In a village in Alaska they have watched the glaciers grow larger which changes the sea level and makes it 
 Answer: fall


Output: An increase in glaciers lowers sea level and a decrease in glaciers raises sea level.