Its is to end slavery because of troubles
The Aztecs and Incas lacked
A. Political Unity: they didn't have a strong political government.
B. Disease. 70% or more natives were killed by the diseases the Europeans brought over
C. Technology: Europeans had more advanced technology than the natives
One of the main reasons that american democracy relies on representation is due to <u>"the sheer size of america and its population".</u>
Representative democracy is the place the general populations choose representatives to run the legislature. Another name for this sort of democratic government is a democratic republic. The US is an representative democracy. The nationals choose delegates, for example, the president, individuals from congress, and representatives to run the administration.
There are different climates and therefore the vegetation are different depending on where the climates are. Tundra for example is prominent in the northern state of Alaska, which is marked by treeless areas and low growing flora like grasses and some flowers. Arizona where I live is both mountainous and desert, so vegetation needs to be able to store and rely on less water, so there are a lot of Cacti.
I'm sure you can find a ton of other examples.