Fact 1: Ants communicate with chemicals called pheromones.

Fact 2: Ants communicate with the colony in the form of what is called pheremon trails.

Given the two facts above, answer the question "what do ants use to communicate?" with the following options: 
- trails
 - sound
 - nerves
 - waves
 - Decibels
 - motors
 - chemicals
 - Energy


 

 trails        