The statement that is not true is: A healthy ecosystem can support an unlimited number of life forms.
Any ecosystem has its limits. No matter is a healthy, in perfect shape, and very large ecosystem, there's always a limit as to how much life forms can the ecosystem support. If the number of life forms surpasses the ability of the ecosystem to support them, than the ecosystem will crash, be destroyed, and experience a lot of changes, with the death of lot of life forms involved in the process as well.
There isn't such thing as an ecosystem that has the ability to support an infinite number of life forms, there's only ecosystems that are able to support limited number of life forms.
Location is determined by longitude and latitude.
Many Native Americans in the Great Lakes - St. Lawrence Lowlands planted various crops such as maize. The correct option among all the options that are given in the question is the fourth option or option "d". I hope that this is the answer you were looking for and it has come to your help.