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
The properties of synthetic materials and the natural resources used to make them are different.
The correct answer is: The properties of synthetic materials and the natural resources used to make them are different.
One way to identify that chemical reactions are used to convert natural resources into synthetic products is by comparing and contrasting the properties of synthetic materials with the natural resources used to make them. If the properties of synthetic materials are different from the properties of the natural resources, it indicates that chemical reactions have taken place during the production process, leading to the transformation of the natural resources into synthetic products.