Answer:
The biggest changes were in rigging. At first they concentrated on lateen sails, then added a mix of square sails and lateen for deeper penetration into the South Atlantic, with further changes for the much longer route round the Cape. Knowledge of these techniques was protected by forbidding sales of ships to other countries. A third commercial advantage was Portugal's ability to absorb “new Christians” — Jewish merchants and scholars had played a significant role during Muslim rule.
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Answer:
The national origins quota system ended.
Explanation:
Migration refers to the movement of a group of people from one geographical region (location) to another geographical destination in search of better living conditions, work or social amenities.
Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.
Mathematically, the population change equation is given by the formula;
Population Change = (Natality - Mortality) + (Immigration - Emigration)
The Immigration Act and Naturalization of 1965 is also referred to as the Hart-Celler Act and it was enacted by the IS Congress to abolish the previous quota system based on national origins in the United States of America.
Hence, an effect of the Immigration Act of 1965 was that it ended the national origins quota system.
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Answer:
Crude oil or related petroleum products are the number one export for several countries globally. With shipments estimated at $325 billion or 41.3 percent of global crude oil exports, Middle Eastern countries accounted for a large portion of global oil export revenues.