Answer: B) A planned unit development
Explanation: The planned development of the unit is a planned and purposeful use of land and space where densely populated residential units are being built with all the necessary amenities and features. It is also a regulatory process for the use of space and land, as it regulates the optimal use of the said space and land for different purposes, from housing, shopping malls, parks, children's playgrounds, sports and spa centres, etc. Such blocks of flats and all the aforementioned dedicated contents are also cost-effective, since the use of that space and land on which densely populated residential units will be erected and will generate good income is optimised.
The late 1800’s-early 1900’s were a trying time for the nation of Russia due to many events. These harsh times began in the 1890’s with the bad living and working conditions in the country that led to many strikes and revolts. A major revolt occurred in 1905 after the creation of radical factions/political parties. The Tsar (ruler) was not able to keep control or repair the sluggish economy. In both, 1905 and 1914 Russia found itself at war, which both led to embarrassing defeats, revolution, and the overthrow of the Tsar.
Treason is specifically described and explained in detail in the constitution.
The answer is: [C]: a large supply of cheap labor.
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Note: You meant to write:
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"Which factor HAD the greatest positive effect on the late 19th century American industrialization?"
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Sputnik was the first artificial Earth satellite. The Soviet Union launched it into space on 4 October 1957, orbiting for three weeks before its batteries died. It was a sphere with four external radio antennas to broadcast radio pulses. Its radio signal was easily detectable by radio antennas. It was also capable of measuring the thickness and temperature of the high upper atmosphere. The satellite transmission was monitored by radio operators all around the world. It burned up in the atmosphere.