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.

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


[Q]: Question: If you defocus the sun's rays with a lens they are 
 Answer: weaker
[A]: The more focused the Suns rays are, the more energy an area receives and the warmer it is.


[Q]: Question: After Sarah finishes her run, she notices that her blood is really pumping. Sarah can know that since it's a hot day, she's giving off what kind of heat compared to usual? 
 Answer: more
[A]:
On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.