You are presented with the question "products made from what are a big contributor to landfill waste" and the following answer choices: 
- burning coal
 - acetic acid
 - tin
 - hydrocarbons
 - brass
 - Pesticides
 - petroleum
 - recyclables

Now knowing that plastics are made from petroleum and produce toxic waste and plastic is a big contributor to landfill waste, choose the best answer.


 

       petroleum  