You are presented with the question "How do ants communicate to other ants to encourage them to follow?" and the following answer choices: 
- Skywriting
 - Electrical energy
 - Using a phone to communicate
 - Leaving a written communicatio
 - Something coming from a gland
 - By wind and rain
 - Chemical energy
 - Leaving chemical trails

Now knowing that ants communicate with chemicals called pheromones and physiologically, ants leave a trail of pheromones, which other ants then follow, choose the best answer.


 

        Leaving chemical trails 