I'd say create a compost bin. Hopefully this was what you were looking for.
Answer:
A. It is a source of genetic variation
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.
