Answer:
The author can approach constant pollution and Eutrophication as processes that promote the decline of wild rice.
Step-by-step explanation:
Wild rice is produced by algae of the Zizania L. species, which in addition to being very sensitive to excess sulfate in the water, are also victims of constant pollution of the bodies of that and eutrophication that promote the death of these algae in large quantities, making the production of the increasingly small wild rice.