D) Territory
For example Puerto Rico is its own country but is territory of the United States.
False. According to the U.S constitution, President Lincoln couldn't abolish slavery.
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The answer is D. Exosphere
Exosphere is the outermost Layer of the Atmosphere that goes out about 500 - 10,000 Km in altitude.
It's the place where satellites and the space shuttle orbit the earth. Because it's difficult to define the boundary between exosphere and the outer space, exosphere may be considered as a part of outer space
