Locks are used as a technique to connect large bodies of water with one another or to connect ports with other ports or cities with other cities. Therefore, the locks were created to connect the Great Lakes with the St. Lawrence River to allow ships to travel from the Atlantic Ocean to the Great Lakes as far as Lake Superior.
Answer:
b.
Explanation:
Here's one well-known example of functional fixedness at work: You have two candles, numerous thumbtacks, and a box of matches. Using only these ...
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The correct answer is B. Human Development Index.
The Human Development Index (HDI) takes into consideration several different factors in order to categorize nations as to levels of development. Some of the factors they use are:
A) A country's Gross National Income (GNI)
B) Life expectancy
C) Education of citizens (i.e. college degree, years of schooling for average citizen).
Some famous female roles in the history of opera have only been possible because 19th-century composers started giving important roles to mezzo-sopranos.
By the Baroque period (1600-1750), opera had taken Europe by storm, a spectacular and expensive affair filled with ornate arias and elaborate sets with moving parts. One of the greatest composers of Italian baroque opera was George Friedrich Handel (1685-1759), a German who spent most of his life in London.
This period also saw the emergence of castrati, male singers who were castrated as boys to maintain their soprano voices. Those who survived to come out on top were the singing stars of the 17th and 18th centuries. Today these roles are sung by countertenors or women.
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