Fact 1: Fungi are the only organisms that can decompose wood.

Fact 2: Wood used for pulp and lumber.

Given the two facts above, answer the question "Fungi are the only organism that can decompose what?" with the following options: 
- birds
 - pine
 - fossils
 - matter
 - eggs
 - lumber
 - Conifers
 - millipedes


 

      lumber   