You are presented with the question "What does burning coal increase carbon in?" and the following answer choices: 
- the atmosphere
 - Greenhouse gasses
 - climate
 - Greenhouse gases
 - sunlight
 - circulatory systems
 - space
 - carbon dioxide

Now knowing that burning fossil fuels increases the carbon in the atmosphere and like coal, petroleum is a fossil fuel, choose the best answer.


 

 the atmosphere        