I believe the answer is: mats
by removing dirt, debris, and liquid from shoes, it will create a friction force that would prevent you from falling. In order to achieve this, mats usually made from materials that could not absorb liqiuid, such as vinyl, polypropylene, or nitrile rubber.
Answer:
The heart rate will decrease.
Explanation:
When a person's blood pressure goes below the normal rate, heart rate increases in order to get the blood pressure back to normal.
I'm not 100% sure but I'm pretty sure it's height, good luck with it!