Why do you think with all its achievements in sailing, colonizing, and trade, Phoenicia was still weak militarily?

The main reason for that was because they focused their attention to maritime trade and thus haven't developed strong army as they were trying to preserve good relations with their neighbors and the outsiders.

Explanation:

Phoenicia was regarded as one the trade centers. They had good connections with Egypt, Mesopotamia, Crete and were the first ones who went outside the Mediterranean sea. Thus they managed to established a large number of colonies, among which the most famous one was Carthage.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.

explanation: d