Human activity? Can you think of a natural way to increase phosphates and nitrates? Did you observe anything that could be adding phosphates or nitrates at the sample sites? A natural way to increase phosphate and nitrates

it is the most commonly accepted one

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101

answerca air mass;