A substance could have physical characteristics and chemical ones too, which are unique to the certain substance.
Color, odor, and how hard the substance, are all examples of physical characteristics of a substance.
Toxicity, flammability, and acidity, are all examples of chemical characteristics of a substance.
Pressure will decrease whenever the surface area increases, and when the weight of the object is reduced.
Answer:
A natural resource is something found in nature that people use.
Explanation: