Answer is D Introduction of new plants and animals cause nobody had found the Americas until then hope this helps
Slaves from africa where brought to the americas to mine and work in farms
d. was involved in World War II.
Answer:
The global food system is facing daunting and complex challenges in ... Three key challenges facing agriculture and how to start solving them ... that will likely grow from 7.5 billion people today, to nearly 10 billion by 2050.
Explanation:
okay papa but like you gotta give the options
