You are presented with the question "What does plant and animal residue increase in soil?" and the following answer choices: 
- Scent
 - Temperature
 - Bugs
 - rainfall
 - fossil fuels
 - Water
 - energy
 - Nutrients

Now knowing that decomposition increases the amount of nutrients in the soil and organic matter is the plant and animal residue in the soil at various stages of decomposition, choose the best answer.


 

        Nutrients 