It is in the South Pacific Ocean. Near 170 degrees west longitude and 14 degrees south latitude.
Since you did not specify the direction of longitude, the country located at 20 degrees south latitude and 140 degrees east longitude is Australia, while the country located at 20 degrees south latitude and 140 degrees west longitude is France. The location is French Polynesia, which is a French territory.
The city located at 6 degrees south latitude and 106 degrees west longitude is Lima, the capital of Peru.
Antarctica is located closest to 80 south longitude. It is the southernmost continent and surrounds the South Pole.
The Tropics of Cancer and Capricorn are located at 23.5 degrees north and south latitude respectively, because latitude measures north-south while longitude measures east-west.
Ecuador
The South Pacific Ocean.
The gulf of Oman
The latitude and longitude of Perth is 31 degrees south and 115 degrees east. Perth is a city located in Australia.
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.
The maximum degree of longitude is only 180.
Kwazulu-Natal, South Africa