What southern invention was created to combat the naval blockade

They created the blockade runner.

Explanation:

The blockade runner was invented to get past blockades. The South needed something fast that could get past the North's blockade so they could get supplies.

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the correct answer is: (1) affected by gerrymandering; (2) not affected by gerrymandering.

gerrymandering is known as a practice that intends to establish a some kind of political advantage for a particular party or group. to do this district boundaries are manipulated. the new resulting district is named a gerrymandering.

in other words, what gerrymandering does is to draw the boundaries of electoral districts trying to benefit the party who is doing it. sometimes, the party controlling the legislature will redraw it so they can maximize the number of districts they are likely to control.

19th amendment granted women the right to vote. the 19th amendment guarantees all american women the right to vote.