The correct answer is mouth of a river
That's where the river slows down and particles start sedimenting. When the sediment is huge, deltas are formed.
Homeostasis is very important and your body function or the enzymes here because of your body being in homeostasis. If increase or decrease in temp, your body will halt all processes and try to readjust your body back to normal first because if not, then a lot of other processes would be affected negatively as well and you could potentially get ill.