You need to master your attitude, above all else, in order to survive.
Answer:
<em>are </em><em>really</em><em> </em><em>good</em><em>:</em><em>)</em>
<em>btw </em><em>thanks</em><em> for</em><em> the</em><em> points</em>
Answer:
I think the answer is Mayas made striking advances in writing, astronomy, and architecture, the Aztecs adapted earlier pyramid designs to build massive stone temples, and the Incas showed great skill in engineering and in managing their huge empire
It increased because during the clivil war people fought and then had rights. Hope it helped
