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During the spring, on a warm, sunny day in Boston, Massachusetts, the wind shifts from southwesterly to northeasterly and the weather turns cold, damp, and overcast. This suggests that a "back-door" cold front approached Boston from the ____.
Bifocal Lenses
Eyeglasses with lenses having two distinct optical powers, designed to correct vision for both near and far distances.
Living Independently
The ability to manage one's life and make decisions without relying on others for daily needs and responsibilities.
Protestant Reformation
A religious and political movement in the 16th century that began as an attempt to reform the Roman Catholic Church and led to the creation of Protestant churches.
Industrialism
The social and economic system built on the production of goods and services by the use of industrial technology and factories.
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