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: John was looking at rocks in the valley and noticed something. The more resistant the rocks he looked at were, the amount they remained was 
 Answer: Longer
[EX A]: Different types of rocks weather at different rates. More resistant types of rocks will remain longer.

[EX Q]: Question: Katie has a garden and she installs a small waterfall. Since Katie sets the water to flow very slow and gentle over the sloping fall, the erosion at the bottom of the waterfall will be 
 Answer: less
[EX A]: A gentle slope favours slower flow of surface water, reduces erosion, and increases availability of water to plants.

[EX Q]: Question: When two batteries are placed further apart, John can tell that the electrostatic force is 
 Answer: less
[EX A]:
The closer the charged objects are, the stronger the electrostatic force.