What do the discoveries of shells used in jewelry and a huge dredged canal tell us about the indus valley civilization?

The shells are evidence that the Indus Valley had some connection with coastal people. The canal is evidence that Indus Valley people may have used boats to transport themselves and trade with people in coastal cities. I hope i helped <3

roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.