You are presented with the question "What causes global warming?" and the following answer choices: 
- Oceans rising
 - Deforestation
 - Greenhouse gasses
 - Burning fossil fuels
 - Greenhouse gases
 - Movement of an air mass
 - Leaving lights on
 - tectonic plates coliding

Now knowing that burning fossil fuels increases the carbon in the atmosphere and more carbon in the atmosphere means atmospheric warming, choose the best answer.


 

    Burning fossil fuels     