Fact 1: Decomposition increases the amount of nutrients in the soil.

Fact 2: Bacteria and fungi are involved in the decomposition.

Given the two facts above, answer the question "What can increase the amount of nutrients in the soil?" with the following options: 
- roots
 - wind
 - worms
 - Fungi
 - Enzymes
 - corn
 - trees
 - mussels


 

    Fungi     