Natural resources are materials or substances that occur naturally in the environment and can be used by humans to satisfy their needs and wants.
Here's why your definition needs a bit of tweaking:
* Materials and substances: Natural resources encompass a wide range of things, not just materials. They can include air, water, sunlight, and even living organisms.
* Occur naturally: This is the key point. Natural resources are not created by humans; they are found in nature.
* Used by humans: The definition emphasizes that these resources are valuable because we can use them for various purposes.
Example:
* Wood is a natural resource because it comes from trees, which are found in nature. Humans use wood for building houses, making furniture, and producing paper.
In summary, natural resources are naturally occurring materials and substances that humans can utilize to fulfill their needs and desires.
