Which of the following statements best characterizes the effects and treatment of ethnicity during the past 20 years? a. ethnic diversity has increased as new ethnic groups have formed. b. ethnic identification of different groups has declined as populations have become more homogeneous. c. ethnicity has been a source of pride and identification as well as a source of conflict among groups of people. d. people have been less likely to reveal their ethnicity since the advent of the internet, because it has little meaning in online communication.

A is the right answer.

the answer to this question is give me a better question

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.