I didn't look this up or anything but I'm pretty sure that the early Americans economics problem was who was in charge. I know this for fact because it still goes on today because we have to vote for presidents as the ruler of the countries.
You're Welcome in advanced! I hope this helped!
Answer:
What do you mean? I don't get it. But they most likely hunted bison and possibly polar bears
Hope this helped
Brainliest pls?
Answer:
caffeine.
Explanation:
When Xi consumed several cups of coffee to stay wake for another hour.Coffee contains caffeine.Since caffeine is psychoactive drug and it is legal also unlike other psychoactive drugs.You feel more energetic.It acts as a central nervous system stimulant and when it reaches the brain it causes alertness and you will feel more awake.But Xi consumed more than he needed hence he was not able to go to sleep.