Fact 1: Aairplane is used for moving people across bodies of water.

Fact 2: Airplanes are responsible for air, noise, and water pollution.

Given the two facts above, answer the question "what pollutes the environment?" with the following options: 
- bacteria
 - airplanes
 - deforestation
 - moon
 - sun
 - cells
 - Smoking
 - flooding


 

  airplanes       