victordguerrero1448 victordguerrero1448 12-11-2020 Social Studies contestada Item 6 6 Why did an African slave trade develop in the southern colonies of North America? A new enslaved labor force was needed on plantations when the fur trade became big business. A new enslaved labor force was needed on plantations when indentured servants refused to keep working on them. A new enslaved labor force was needed on plantations when European diseases killed large numbers of indigenous people. A new enslaved labor force was needed on plantations when the original cash crops failed.