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.

Question: As more goats are introduced to an area with grass what will happen to the grass levels? 
 Answer: decrease
In an inverse relationship, when one variable increases, the other variable decreases.

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
A gentle slope favours slower flow of surface water, reduces erosion, and increases availability of water to plants.

Question: When Mike has high blood pressure, Mike knows that the volume of his blood is 
 Answer: high

This is because the lower blood volume in the vessels exerts less pressure on the vessel walls.