Answer:
it depends which part of the us you are talking about - and by ecosystems do you mean biomes
Explanation:
the us have these following ecosystem
-taiga , hot deserts, cold deserts, tropical dry forests, temperate deciduous forests etc
Per capita income is the measure of the amount of money earned per person a geographic region. The formula is total income of area divided by the total population.
North Korea is definitely a totalitarian state as its citizens have no freedom of expression or freedom of choice