What could cause you to lose your citizenship of a certain country would be if you decided to betray your country for some reason in some way. This could be done in multiple fashions, one being if you're in the army and you give out a top military secret. This cold make you lose citizenship.
Explanation:
Slaves are those people who are bound by the authority of someone and are meant to serve that authority
Compared to time in earth's history before humans appeared, rates of soil erosion are "higher", due mostly to the fact that some human activity associated with building structures adds to this erosion.
Perhaps the greatest transportation development that took place during this time was the creation of the railroad, which many travel and the transfer of goods far easier and therefore far cheaper.
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It was easier for goods to be transported across country
