Robert Fulton - steam boat
Sam Slater- water powered cotton mill
Cyrus McCormick - mechanical reaper
Morse- telegraph and morse code
I would say B, I'm not fully sure.
The worlds population is growing and is overpopulating. This is negatively affecting the worlds biodiversity.
The danger and difficulty in escaping from slavery are hard to imagine. Most slaves were illiterate and had no money and few, if any, possessions. The colour of their skin made them easy targets during the daylight for those who would hunt them down—often with the help of bloodhounds—and return them to their owners.
Answer:
First put up blockades, then later built a wall, to stop the migration of the people.
Explanation:
I know