I believe the correct answer would be strong/strength, because fort means strength.
Since there are no choices given, allow me to give the factors that caused the Fall of the Aztec Empire. These are:
*the sacrifices (ritual Aztec sacrifices);
*religion;
*diseases; and
*tactics.
To further learn about this topic, see attached file.
<span>The three main effects of having a third party of politics in the United States is that they very rarely ever win any elections when it comes to campaigns held in the United States, they shift the national focus away from certain issues which can be very important and then become ignored, and finally, they often just take votes away from the candidates of the major parties which influences the entire outcome of the elections.</span>