Answer:
The warm, moist climate allowed for longer growing seasons.
Explanation:
The antebellum period often referred to as the plantation era
In order to grow properly, Plants need a combination of perfect weather, sunlight, water, and nutritious soil. The Southern states possess all of these characteristics. This is why, the southern states focused most of their resources on agricultural economy.
Southern states use large amount of slaves labor in order to sustain their agricultural operation. This is far cheaper compared to hiring migrant workers.