Nutrient Cycles

Carbon, Nitrogen, Phosphorus, and Water

Why are these nutrients important?

Carbon, Nitrogen, Phosphorus, and Water are all vital parts of building the molecules necessary to sustain life. Carbon, nitrogen, and phosphorus are major components of many biomolecules. Water is essential for processes including hydrolysis and photosynthesis.

Did you know?

Water covers about 71% of the Earth's surface, with oceans holding approximately 96% of that water.

All of these nutrients are available in our biosphere!

Frequently Asked Questions

  • Where can I find more information about the water cycle?
  • How does carbon move through an ecosystem?
  • Is there an image of each cycle I can view?


  • Visit Google Classroom and open the Ecology PowerPoint!