Answer:
La Guerra Chichimeca se llevó a cabo principalmente en los actuales estados de Zacatecas, Guanajuato, Aguascalientes, Jalisco y San Luis Potosí entre los indígenas zacatecos y guachichiles contra los españoles y sus aliados indígenas.
Tree rings are annual growth rings and their thickness indicates how growing conditions were for that year. Index fossils in their type and frequency are indicative of the environment that those organisms grew in and how prolific life was then in that environment. Ice cores drilled through glaciers and ice sheets like in Antarctica tell us about such things as the concentration of greenhouse gases like carbon dioxide (as bubbles in the ice layers) and also about climatic conditions in glacial and interglacial periods.
I'm not sure if you're looking for a specific answer, but I think it's when you appeal to the verdict and want another trial. That, and when the verdict is undecided. I might be forgetting something else but that's what I've known so far.
Overproduction of agricultural products.
