Petroleum is a __________ resource because it takes millions of years to form. Petroleum is a NONRENEWABLE resource. What are natural resources? Parts of the environment that are useful or necessary for the survival of living organisms. Name 3 renewable resources. Possible answers: sunlight, water, air, crops Name 3 nonrenewable resources. Possible answers: petroleum (which makes plastic, paint, and gasoline), Aluminum, Iron, Steel Concept Review of Chapter 27: Conservation