Unit 1

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Across
  1. 1. is one or more communities of different species interacting with one another and with the chemical and physical factors of their nonliving environment.
  2. 4. variety of life in the world or in a particular habitat or ecosystem
  3. 5. environmental conditions indefinitely
  4. 6. maintain stability or to adapt to
  5. 9. Materials and energy sources
  6. 11. interdisciplinary study of how humans interact with the environment
Down
  1. 2. is everything around you
  2. 3. continually waste, deplete, and degrade much of Earth’s natural
  3. 6. that support life—including human social
  4. 7. consists of the natural resources and ecosystem services that keep humans and other species alive and that support human economies
  5. 8. the capacity of Earth’s natural
  6. 10. nature that are essential or useful to humans