Answer:
Crust
Step-by-step explanation:
Soil is found on the outermost layer of the Earth, or the crust. The crust is made up of dead plant and animal matter, clay, rocks, sand, water, and other nitrogen and carbon rich compounds that help aid the microorganisms which thrive with in it. The matter found within the soil differs depending on it's location, but all of it can be found on the crust.