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

Fact 2: Most soil organisms are responsible for decomposition and nutrient cycling.

Given the two facts above, answer the question "What living thing increases nutrients in soil?" with the following options: 
- snail
 - fertilizer
 - chemicals
 - bushes
 - mussels
 - plants
 - organisms
 - compost


 

       organisms  