Why does the Environmental Protection Agency (EPA) establish emission guidelines for car exhaust? O A. to maintain low air pollution levels
OB. to maintain high air pressure levels
o
C. to maintain consistent water supplies
O D. to maintain consistent cloud formations

Which german count invented the zeppelin

Which 19th century technological advancement would best allow farmers along the mississippi river in iowa to quickly transport their crops to buyers in louisiana?

In a modern democracy all elected officials serve for a certain number of terms then must retire a high school sophomore and a senior citizen may vote at the polls together a united states senator votes on immigration law on behalf of your mother through indirect ballot all democracies have a two chamber system of representation united states citizens live in a direct democracy