Non living things like mountains,oxygen,water.etc
Foods rich in iron include:
Red meat, pork and poultry.
Seafood.
Beans.
Dark green leafy vegetables, such as spinach.
Dried fruit, such as raisins and apricots.
Iron-fortified cereals, breads and pastas.
Peas.
Not sure what the choices are but a biotic factor is anything living.
5,996,544.
I hope this helps
