Why Antarctica has the lowest temperatures on Earth?

Antarctica is known to be the southernmost continent, occupying an area near the South Pole. These parts of the planet, due to the spherical shape of the Earth, receive less heat than the rest of all other regions. In addition to this, Antarctica is highly elevated above sea level due to a thick layer of ice (thickness reaches three to four kilometers). And with height, as you know, the temperature drops. Here the climate is continental, and the continent is also surrounded by cold sea currents that block the path of warm air.