Which region is not Antarctica?

The Arctic region is distinct from Antarctica in several geographical and climatic aspects. While both are cold regions characterized by ice and snow, the Arctic is located around the North Pole and is primarily an ocean surrounded by land. It has a different climate, with more variable temperature ranges and seasonal changes compared to the Antarctic, which is a continent located at the South Pole and is largely covered by ice.

In contrast to the Arctic, the subarctic, tropics, and temperate regions all contain landmasses that experience diverse climates and ecosystems. The subarctic region, situated just below the Arctic, has cold temperatures but often has different flora and fauna compared to the Arctic. The tropics are known for their warm climate and abundant biodiversity, while the temperate regions experience four distinct seasons with varying temperatures and ecosystems. Therefore, the Arctic's unique position as a sea surrounded by continents and its distinct climate make it the correct answer when identifying a region that is not Antarctica.