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The correct answer is C. Population density is based on both fertility and historical population levels.

Explanation

The graph shows the comparison between Bangladesh and the state of Utah (United States). This graph includes the following data: 2004 population (in millions), total area (in square miles), population density (pop / sq ml), birthrate, and fertility rate. This graph shows that Bangladesh has a higher birth rate, population, population density, and fertility rate than Utah in a smaller area. According to these data, it is necessary to include these data to know the population growth trend through data such as birthrate and fertility rate, because if this indicator is higher, the population will tend to increase as in the case of Bangladesh So the correct answer is C. Population density is based on both fertility and historical population levels.

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.