His discovery of the role of oxygen. He recognized and named oxygen and hydrogen and opposed the phlogiston theory. He helped construct the metric system, wrote the first extensive list of elements, and helped to reform chemical nomenclature.
The initial effects of the atomic bomb dropped on Hiroshima and Nagasaki were: the entire city was razed to the ground and nothing left standing.
The answer to your question would be letter B. The other letter choices are incorrect.
C) Bison
Natives used every part of the animal. Skins for clothing, Bones for tools and weapons, Everything else was used as tools or other things.
As for the rivers, the colonists were aware you must have water to successfully maintain life whether it be human life or plant life, it is necessary. Also being close to water helped them in the workforce, like carrying out trade or fishing It was a "win win" for them.