If you’re talking about the book Hatchet, then I believe it is because Brian is alone, it will be cold, harder to keep warm, harder to find food because not as many animals put, harder to keep fire going.
Answer: They resulted in little to no change.
Explanation:
The revolutions in 1830 shook many places in Europe. The places such as France, Germany, Belgium, etc were in great flux. The revolutions that broke in Europe in 1830 were Romanticism, the Belgian Revolution, and the July Revolution.
These revolutions were considered as the lengthy continent-wide crisis. The origin of these revolts lie in the governmental mistakes. But these revolutions were unable to bring a satisfactory outcomes as hoped for because of lack of preparations by the revolutionaries. And also, these revolutions did not get any international help. So, the European revolutions of 1830 resulted in only little or no changes.
"Sumerian city-states fought each other" would be the best option from the list, since this internal division led to a collapse of power that left people without protection or a solid economy.
