C and E are the answers to your question.
Please mark as brainliest!
I think the answer is that The 1850s was a pivotal decade in the 19th century. In the United States, tensions over slavery became prominent and events began to put the nation on the road to civil war. In Europe, new technology was celebrated and the great powers fought the Crimean War.
Sacajawea has the Native American woman that helped Lewis and Clark, mainly due to her brother being the leader of a tribe, which they needed to borrow horses from.
The answers are:
<span>Some oil refineries in the area flooded, releasing toxic sludge into the water that covered much of the city.
The city's position between Lake Pontchartrain and the Mississippi River led to widespread flooding.</span>
