The Arctic Ice Mass is composed of two main components: floes and bergs. Floes are large, flat pieces of ice that form when the sea freezes over. They are usually found in shallow waters and can be up to several kilometers in size. Bergs, on the other hand, are large chunks of ice that have broken off from glaciers or icebergs. They are usually much larger than floes and can be up to hundreds of meters in size. Both floes and bergs are important components of the Arctic Ice Mass, as they provide habitat for many species of wildlife and help regulate the Earth's climate.