Its yes because yes is always right right on brooo
They had a perfect place to plant food,
They had plentiful forests filled with animals, and they had lots of natural resources to build houses and stuff with
They cried as they went because they were leaving the land they loved, the land they had called home for so many years.
Honestly, none. The union didn't really have any agricultural advantages over the Confederacy, in fact, it can be argued that agriculture was one of the biggest disadvantages of the union.