What is the name of the largest ice cap in the Arctic?

Which of the following countries has a coastline on the Arctic Ocean? What is the name of the largest city in the Arctic Circle? Which sea is located between the Svalbard archipelago and the Norwegian mainland in the Arctic? What is the name of the largest glacier in Antarctica? Which river flows through the Arctic tundra in northern Canada? Which Antarctic research station is located at the South Pole? What is the name of the strait that separates the Antarctic Peninsula from the South Shetland Islands? Which sea surrounds the northern coast of Greenland?