Fact 1: Creating paper requires cutting down trees.

Fact 2: Trees clean and cool the air.

Given the two facts above, answer the question "What does creating paper do?" with the following options: 
- duplicate itself
 - Makes the air dirtier
 - Makes food
 - Cleans the air
 - converting electricity to heat
 - to move people
 - Plant growth is reduced
 - Lengthens tree life


 

  Makes the air dirtier       