After reaching North America, humans migrated to South America.
Shipping technologies and cultures were more readily shared
There are 8 vertices in a rectangular prism. An easy way to remember that is the number of vertices on the 2 end squares when combined, as they are shared with the side faces<span />
One complete revolution on Earth around the sun takes about 362.25 days or 1 year. The 1/4 or the quarter, 25 is considered as the leap year.
Hope this helps!
