Tropical rain forests cover about 7% of earth's surface and can rain up to 400 inches per year. This biome has hundreds of different trees, animals, and plants.
Deserts are the driest biomes of all of the biomes. Deserts cover about 20% of earth's surface. Vegetation in deserts are relatively low, so only small animals, rodents, and reptiles can survive here. Animals here store water since water is scarce.
Temperate grasslands are mostly made of grass. They do not receive enough rain to produce lots of trees like the tropical rain forest. 25% of earth's surface is grasslands. Temperate grasslands are warm during one part of the year, and very cold during the other.
The taiga biome is the largest terrestrial biome and extends throughout Europe, North America, and Asia. This biome usually has short, wet summers, and long, cold winters. There isn't a large variety in plants here. It's mostly just conifer trees that grow in the taiga biome. There also isn't a large variety in vegetation in the taiga.
The tundra biome is the coldest biome behind the polar region. The winters are really cold with temperatures below -34 celsius. The summers last only about two months and temperatures are still cold. Some animals, insects, and plants even thrive in the tundra. This biome covers 20% of the earth's surface, and has about 400 different plants but only 48 different animals.
The polar region is similar to the tundra biome. Its climate is long, cold winters with annual temps mostly below freezing. These biomes are located near the North Pole, South Pole, Arctic Circle, and Antarctic Circle.