20 S 100 W is in the South Pacific Ocean, way off the coast of South America. The capital city nearest appears to be Lima, Peru.
Mendoza is the capital of the province of Mendoza in Argentina. It is located at 32 degrees 53′S 68 degrees 49′W.
Melbourne Australia
9 degrees 07 minutes south, 37 degrees 18 minutes east.
There's no city there. That point is in the foothills of the Bolivian Andes, about 36 miles north-northeast of the capital at La Paz.
It's Alice Springs in Australia. It's not a capital city as far as I'm aware, but there's nothing else close by.
Sydney, the capital of Australia, is the nearest capital city to the given coordinates. It lies at 33.86 degrees South and 151.21 degrees East.
Mexico City
South
The answer would be the capital of Congo with is Brazzaville
With a latitude of 41° 17' South, Wellington is the southernmost capital city in the world. (Source wikipedia)
the city of Nairobi, the capital of Kenya.
Suva is the capital city in Fiji. Suva's coordinates are 18.1416 degrees South 18.4419 degrees East.
Brasília is the federal capital city of Brazil. Brasília's coordinates are 15 degrees 47 minutes South and 47 degrees 52 minutes West.
LANSING MICHIGAN
The City of Moscow, Russia is located at 38 degrees south and 145 degrees east. Moscow is the capital and largest city of Russia.
Jakarta, Indonesia.
Brasilia, Brazil.