The homes of wild animals and human beings are made from natural resources. People use and affect natural resources. People can choose to conserve and protect natural resources. Healthy ecosystems are biologically diverse, have complex interrelationships, and are sustainable. Some components, relationships, and energy sources in human communities are similar to those that exist in ecosystems.
Human communities affect the quality of natural and built environments.
People can choose to participate in responsible actions to promote sustainable human communities and enhance or protect the quality of the environment.