The low precipitation in Antarctica is due to its high elevation and cold climate. The air at high elevations is thinner and drier than the air at lower elevations, and cold air holds less moisture than warm air. Antarctica is also located at the South Pole, which is the coldest place on Earth. The average temperature in Antarctica is -56.5 degrees Fahrenheit (-48.6 degrees Celsius). The cold temperatures cause the water vapor in the air to freeze, and the ice crystals then fall as snow.
Although Antarctica is a desert, it is not a barren wasteland. There are a variety of plants and animals that live in Antarctica, including mosses, lichens, algae, penguins, seals, and whales. These plants and animals have adapted to the harsh conditions in Antarctica, and they are able to survive in the cold, dry environment.