What gives you a good clue that chemical reactions are used to convert natural resources into synthetic products

Synthetic materials and natural resources don't have any properties
It's impossible to compare and contrast the properties of synthetic and natural materials
The properties of synthetic materials and the natural resources used to make them are different
The properties of synthetic materials and the natural resources used to make them are the same

1 answer

The properties of synthetic materials and the natural resources used to make them are different.