Why did many native american cultures develop in north america?

The idea that desirable traits can be bred into human beings and undesirable ones can be bred out is known as:

What is a country called that is technically independant but is controlled by another country

The red arrow shows the direction that wind from the south pole would travel if earth were not spinning. the wind's destination is at point a. because earth is spinning in the direction shown by the blue arrow, the coriolis effect will cause the wind to terminate closest to which point?