Fact 1: The vanes rotating in an electric fan causes air to move.

Fact 2: Electricity flows through an electric motor in a fan, causing the fan's blades to turn.

Given the two facts above, answer the question "What would a turning blade cause?" with the following options: 
- air to move
 - scattered light
 - contamination
 - killing insects
 - air to freeze
 - water to cool down
 - heat energy
 - air to stagnate


 

 air to move        