Answer:
two examples of things studied in the earth sciences are rocks and landscape features.
Explanation:
there's actually A LOT you can learn in earth science, so rocks and landscape features are just two examples. if you want even more specific examples, there's igneous rocks and sedimentary rocks, and there's also landscape features like glaciers and eolian systems (both of these you can find naturally on the earth).
Impact : The Haitian Revolution had many international repercussions. It ended Napoleon's attempts to create a French empire in the Western Hemisphere and arguably caused France to decide to sell its North American holdings to the United States (the Louisiana Purchase)—thus enabling the expansion of slavery into that territory.
The social instability of Saint Domingue was the leading factor in the Haitian revolution, as it caused political unrest within the colony. ... In political terms, the French Revolution aided in giving rights to slaves, and therefore causing anger and hatred between these different social classes.
Affect later revolutions : The Haitian Revolution had many international repercussions. It ended Napoleon's attempts to create a French empire in the Western Hemisphere and arguably caused France to decide to sell its North American holdings to the United States (the Louisiana Purchase)—thus enabling the expansion of slavery into that territory.
Emperor Romulus Augustus was deposed by the Germanic King Odoacer if I remember correctly.
Germany as after WWII the "Iron curtain" was dropped by western Europe in an attempt to staunch communism.