Yes it is salvation for human king promise
<span>The Aztecs build canoes to move around the lakes and canoes. They also built retaining walls to keep some of the water at bay. The Aztecs also built floating gardens, like an island, to grow crops.</span>
Answer:
The Portuguese goal of finding a sea route to Asia was finally achieved in a ground-breaking voyage commanded by Vasco da Gama, who reached Calicut in western India in 1498, becoming the first European to reach India. ... Portugal's purpose in the Indian Ocean was to ensure the monopoly of the spice trade.
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Portuguese
1) - removing barriers to trade does not protect from foreign influence - false.
2) regional trade blocks are usually correlated with decreasing, not increasing tariffs - false.
3) this it true - and this is the reason - correct answer
4) it increased, not reduces diffusion- not the correct answer