The document describes several biomes, including the desert, wetlands, alpine, rainforest, savannah, grasslands, coastal, reef, and tundra biomes. It provides 1-2 descriptive words for each biome's characteristics, such as "hot and plain" for the desert biome, "wet and marshy" for the wetlands biome, and "freezing" for the tundra biome. The document aims to highlight the key features that define each global biome.