Because its is a bit more rare than iron .
Why don't u ask your teacher
Explanation:
As far as I can think of, we're dependent on other species. If we can't be carnivores, then literally, the only other option I can think of is being a herbivore, and that still an organism. We need sufficient life essence to keep living. We CANNOT live without harming another organism.
In short of my babbling, human survival is not independent of other species.
No it is native to Southwestern Russia,The caucasus , and turkey. Despite its name, it is not native to Siberia