Fact 1: Earthworm burrows help aerate soil, which is also good for plants.

Fact 2: Dirt is really misplaced soil.

Given the two facts above, answer the question "What does an earthworm do that would help plants?" with the following options: 
- reusing materials
 - It helps them survive
 - eat the plant
 - scare away birds
 - reproduce
 - hydrate their cells
 - burrow in the dirt
 - eat all the dirt


 

       burrow in the dirt  