"A commonwealth is a traditional English term for a political community founded for the common good. Historically, it has sometimes been synonymous with "republic". The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the 15th century."
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About 10% of africa was colonized in 1870
The answer is: Water Scarcity
The new Mexico region has a low level of humidity and a really high temperature.
This condition makes it almost impossible for that region to form a sustainable water source because most of the liquid in this region will evaporate really quickly.
The answer is B. aggressive .