Answer:
Sea Level Changes late Holocene sea level ( BC) Holocene delta development worldwide (3500 BC) By 4000 BC sea level rise began to slow and deltas begin to form. ... A notable example is the mesopotamia delta (3200 BC) in times leading up to the great flood. This is a condition that had not existed for 120,000 years..............
Source : Book
Costco? you mean the grocery/supermarket that is around the corner
Answer: the spices were worth two times the cost of the journey ,spices ,silk, small plastic toys
Explanation: That is what he brought back from Europe