Question

grasslands: conservation & management
1 of 10
why do temperate grasslands have the most fertile soil on earth?
trees require substantial amounts of nutrients to grow, so the lack of trees in grassland areas allows for more fertile soil
temperate grasslands receive the most rainfall compared to other grasslands
grasslands have the least number of invasive species who absorb nutrients from the soil
grass roots decaying below the surface enriches the soil with nutrients

Explanation:

Grass roots in temperate grasslands decay below - ground, releasing nutrients into the soil which enriches it and makes it fertile. The other options are incorrect as the lack of trees is not the main reason for soil fertility, temperate grasslands do not receive the most rainfall compared to all other grasslands, and grasslands do not necessarily have the least number of invasive species.

Answer:

Grass roots decaying below the surface enriches the soil with nutrients