Decomposition increases amount of organic matter in soil, and organic matter is the plant and animal residue in the soil at various stages of decomposition. Given these facts, what increases the amount of plant and animal residue in soil among the following options:
- Decomposition
 - Warm temperatures
 - fossil fuels
 - Pesticides
 - nutrients
 - evaporation
 - Wet weather
 - Living creatures


 

 Decomposition        