Answer:
D. Tamerlane
Explanation:
Got it right on odyssey :)
B. Ecosystem because there abiotic and biotic things.
Answer:
The exchange introduced a wide range of new calorically rich staple crops to the Old World—namely potatoes, sweet potatoes, maize, and cassava
Explanation:
Maybe C (not sure ) sorry zzzzzzzz..........bsbsjajajaka