Answer: Satellite images track the changing human footprint across the globe, including rapidly growing cities, urban sprawl and informal settlements. Increasingly, satellite imagery is used to measure, identify and track human activity.
Phoenician merchants acted as middlemen for their neighbors. They transported linen and papyrus from Egypt, copper from Cyprus, embroidered cloth from Mesopotamia, spices from Arabia, and ivory, gold, and slaves from Africa to destinations throughout the Mediterranean.