Why did trade along the Indian Ocean contribute to the growth of states?

A large variety of substance were transported within an easy route

Explanation:

The Indian Ocean trade routes connected Southeast Asia, India, Arabia, and East Africa, beginning at least as early as the third century BCE. ... Domestication of the camel helped bring coastal trade goods such as silk, porcelain, spices, slaves, incense, and ivory to inland empires, as well.

The dhow trade was particularly important in the western Indian Ocean, where those vessels could take advantage of the monsoon winds; a great variety of products were transported between ports on the coast of East Africa and ports on the Arabian Peninsula and on the west coast of India (notably Mumbai, Mangaluru ( ...

tenochtitlan (also spelled tenochtitlán), located on an island near the western shore of lake texcoco in central mexico, was the capital city and religious centre of the aztec civilization. the traditional founding date of the city was 1345 ce and it remained the most important aztec centre until its destruction at the hands of the conquering spanish led by hernán cortés in 1521 ce, which led to the final collapse of the aztec empire.

i believe that the correct answer is a canadian hero.

explanation: he is celebrated as a national hero in canada for successfully thwarting a united states takeover of canada during the war of 1812.