Answer:
Temperature and rainfall affect the distribution of biomes because biomes are determined by climate, which in turn is largely determined by temperature and precipitation. Climate dictates which species can survive in a certain area and therefore the type of biome that will form. Warmer temperatures and more precipitation will typically lead to more productive biomes, like tropical rainforests, while colder temperatures and less precipitation will lead to less productive biomes, like deserts.
Step-by-step explanation: