Which Two Biomes Have the Least Amount of Rainfall?

The desert and the nonforest biome (tundra) are the two biomes that receive the least amount of rainfall during the year. The tundra receives very little rainfall in the form of liquid water, and the desert receives less than 9.9 inches per year.

The amount and diversity of plant and animal life a desert can support is in direct relation to the amount of precipitation it receives. As a result, most deserts have fairly minimal flora and fauna populations in comparison with other biomes.

Even though the tundra receives very little rainfall, the ground can appear marshy because there is little evaporation and the ground is frozen, resulting in poor drainage. The tundra has a very short growing season, which occurs when warmth and water are most readily available.