Explanation:
at the dedication of the Gettysburg Civil War Cemetery on November 19, 1863
The distances are so great and vast that they need a large measurement to easier express the distances. They use Astronomical Units (AUs) for distances within our solar system.
South Africa= around 55,000,000 of total population (based on 2015 data)
Nigeria= around <span>185,000,000 of total population (2015 data)
Angola = around </span><span>25,000,000 of total population (2014 data)
Congo= around </span><span>82,000,000 of total population (2015 data)
Given that there's not an high </span>population growth or <span>birth rate or something like that, I'd say Nigeria </span>
C. The study of unique traits of different parts of the world