The triangular trade practice that took place from the 1500s through the 1800s involved the forced migration of which group of people? African slaves
Asian refugees
European explorers
North American colonists
South American farmers

Match the letters with the correct terms

Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire

This is a 2017 topographic map of puerto rico in the united states, and i'm sorry that people there have suffered such a disaster. i want to ask, what do the yellow dots and areas represent on this graph? and the blue area and the little blue circle, and the little blue sign that looks like a signal tower, what do they stand for?