Answer:
Exploration of Antarctica’s interior did not begin until airplanes were strong enough to withstand the winds and cold.
The northern soil and climate favored smaller farmsteads rather than
large plantations. Industry flourished, fueled by more abundant natural
resources than in the South, and many large cities were established .The fertile soil and warm climate of the South made it ideal for
large-scale farms and crops like tobacco and cotton. Because agriculture
was so profitable few Southerners saw a need for industrial development.
I hope this helped you.
