Answer:
First prompt seems easy.
Explanation:
The most important impact of the Columbian Exchange was the spread of different animals and vegetables.
Now, you can come up with the rest by researching about the Columbian Exchange if you don't know much about it, instead of asking for someone to do the whole document for you. I got you starting line, you're welcome :)
It would cause erosion by washing away the soil into the ocean
The year 1916 - that city is Baton Rouge
I believe it is fertile land. Sorry if wrong
