If china and india can each take care of over a billion people on relatively the same size land as the u. s., then the u. s. should accept immigrants until it reaches a billion people as well. agree or disagree?

Just did this question

This is wrong, there is a legal process to go through to get a citizenship in the US.

Explanation: The reason for this is to ensure that the President and the citizens will not get assassinated by terrorist

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.