Because all living things are made of carbon in one way or another and we use nitrogen and water naturally.
There are no choices but examples of biotic factors are trees, mosses, ferns, fungi, mammals, birds, reptiles, worms, plants, and lichens.
I think the egg because it’s the start of their life cycle, or something. I don’t think the chicken came first bc the egg would be the baby and the chicken the adult.
Answer: probability of 1/4
