They sometimes grew food for the union army (while the plantation owners were away).
It is A. city blocks laid out in a grid pattern and C. a standardized system of weights and measures.
<span> The form of government that most of Texas' largest cities have is a council-manager form of government.
Hope this helps!
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<span>An increase in scientific and medical discoveries improved life expectancies.
</span>The best possible explanation for the changes in Europe's population since 1750 is that an increase in scientific and medical discoveries improved life expectancies.In fact, it was around this type that basic hygiene norms were implemented, as well as some mortal diseases were cured or to improve lifbetter treated. Moreover, the discovery of vaccinations helped greatly to improve life expectancies.
