Fact 1: Plastics are made from petroleum and produce toxic waste.

Fact 2: Plastic is a big contributor to landfill waste.

Given the two facts above, answer the question "products made from what are a big contributor to landfill waste" with the following options: 
- burning coal
 - acetic acid
 - tin
 - hydrocarbons
 - brass
 - Pesticides
 - petroleum
 - recyclables


 

       petroleum  