"90 degrees south" is the definition of the Earth's south pole, and all longitudes
converge there, so if you're at 90 degrees south, it doesn't matter what longitude
you want to be at, you're there!
This point lies in the middle of the Indian Ocean. It is directly east of South Africa and west of Australia.
Australia
The South Pacific Ocean off the west coast of South America.
It is in the Atlantic Ocean apprx. 360 miles east off the coast of Recife, Brazil.
That's on the Chile/Argentina border, east of Coquimbo.
South America is located at 30 degrees south and 60 degrees west.
The continent that lies at 30 degrees south latitude and 120 degrees east longitude is Australia.
There is no entire country that occupies the space at 60 degrees west and 30 degrees south. This is, however, a point of land that is located in Argentina.
This point lies in the middle of the Indian Ocean. It is directly east of South Africa and west of Australia.
Australia
The South Pacific Ocean off the west coast of South America.
Mississippi is locted in the south-central portion of the United States. It lies between 30 degrees and 35 degrees north latitude and between 88 degrees and 91 degrees west longitiude
There is no city located directly at 30 degrees South and 50 Degrees West. The closest city is the city of Tramandai, Brazil.
Madagascar
Horse Latitudes
That's in the South Atlantic, east of Argentina.
Kitt Peak National Observatory is the mountain peak at this point. It is located at about 30 degrees south latitude and 70 degrees west longitude.