Answer:
independent is what doesnt change so look at it and see which one didnt change through out the experiment
Explanation:
~NYPD is the largest local police department with about 35,000 <span>sworn officers.
</span>~Port Authority of New York and New Jersey Police Department (PAPD) IS <span>the largest special jurisdiction agency in the United States, with more than 1,607 officers; they police the facilities owned and operated by the bi-state Port Authority of New York and New Jersey.</span>
It allowed a new way to ship items from the Pacific ocean to the Atlantic ocean. This also prevented ships from having to go around the southern tip of South America which is dangerous because of the extremely stormy weather there