Multiple choice

Why does fanning a fire increase the size of a fire?

  1. It decreases the supply of fuel to the fire.

  2. It decreases the supply of oxygen to the fire.

  3. It increases the supply of fuel to the fire.

  4. It increases the supply of oxygen to the fire.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fanning a fire introduces a fresh flow of air, which supplies more oxygen to fuel the combustion reaction, causing the fire to burn brighter and grow larger.