Ch 6: Cycles and Spheres of Earth

About This Chapter

Watch these video lessons and take the quizzes that follow to review stages in the carbon, nitrogen, and phosphorous cycles as well as interactions between the earth's four spheres.

Cycles and Spheres of Earth - Chapter Summary

Get a quick review of the main elements and macronutrients making up living organisms before exploring the various ways in which these molecules are cycled through the environment. Our experienced instructors walk you through the interactions between the hydrosphere, geosphere, biosphere, and atmosphere. Lessons in this chapter can also help you examine the following topics:

  • Phosphorus cycle
  • Nitrogen cycle
  • Carbon cycle
  • Earth's four spheres

This brief chapter includes video lessons lasting less than ten minutes each, transcripts with key terms in bold, and self-checking quizzes to help determine when you've mastered these chapter topics. Plus, you can access any and all of these resources at your convenience, wherever you take your mobile device.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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