The answer is: b) Pacific Ocean
The correct answer is letter D. an economy based on trade. The people who migrated to Melanesia developed <span>an economy based on trade. Before the time of currency was used, people back then do trading with their property they own if they want to have something. It's like the same as the barter system or the barter economy.</span>
Answer:
i think quarantine and medicine new technologies
Pampas is a fertile African plane, but <span>Characteristic </span>animals<span> of the </span>Pampas<span>include foxes, skunks, small herds of guanaco, viscachas, bush dogs, and many bird species related to the sparrows, hawks, and waterfowl of the North American prairies. Gaucho herding sheep on the </span>Pampas<span> in Patagonia, Argentina.</span><span />