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: 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: Noah compares the density of the water in a pond during a hot July day and a cold winter morning. The water on the July day is 
 Answer: less dense.
[EX A]: Lower temperature and higher salinity yield the densest water.

[EX Q]: Question: If Mona is starting a garden and she increases the amount of water she applies to it, what will happen to the amount of plants that can grow in the garden? 
 Answer: increase
[EX A]:
As more water covered the land, sand and silt were washed in and covered the dead vegetation, enabling more and more plants to grow.