That point is in the Pacific Ocean, roughly midway between South America and Australia
That point is in northern Argentina, about 140 miles west of the point where the borders of Argentina, Brazil, and Uruguay meet.
South America is located at 30 degrees south and 60 degrees west.
That's a point in northern Libya, about 140 miles south of Benghazi.
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.
The South Pacific Ocean off the west coast of South America.
"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!
There is no city located directly at 30 degrees South and 50 Degrees West. The closest city is the city of Tramandai, Brazil.
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.
It is in the Atlantic Ocean apprx. 360 miles east off the coast of Recife, Brazil.
Chile is in South America that latitude is 71 degrees west longitude is 30 degrees south
That point is in Australia, about 350 miles north-northeast of Adelaide.