The correct answer to this open question is the following.
Here there is no question, just a sentence. What is your question?
Trying to help we did some deep research and can comment on the following.
The question that is missing is this: "Which of the following is most likely a lens he is exploring?" And unfortunately, you also forgot to include the options for this question.
As part of his research on the Civil War, Charlie is reading a book about ironclads (a type of boat) and how they revolutionized naval warfare. The lens. Which of the following is most likely a lens he is exploring?
Answer: the lens of technology.
This is correct because ironclads were a major advancement in the technology of war. Ironclads were modern ships for the time that used steam to move, They were constructed in 1859 and played an important part during the actions of the American Civil War.
It was the use of assembly lines
I think it was to convince people to reject gradual emancipation and demand the complete and immediate abolition of slavery.
The two things that this three countries have in common are that they are all predominantly Christian countries, and that all three of them have access to sea.
Mexico, Finland, and Ghana, are all predominantly Christian countries. They all fall into different branches of Christianity though, and the percentages vary, with Mexico having the highest, and Ghana the smallest percentage of the population practicing this religion.
All of the countries mentioned have access to sea. This has been and still is very important for their economic development because they are all able to dictate their own economies and their own trade with whoever they want.