Now that you have some background on biospheres, click on the link below and look at an example of the global biosphere from NASA's Earth Observatory. Be sure to click play to see the movement of our biosphere from a global perspective:

Global Biospheres

Reflection:
What major changes did you see in the Global Biosphere from 1999-2008? What were the changes of the global vegetation index? Did vegetation increase or decrease over time? What were the changes to the concentration of chlorophyll in the earth's bodies of water? Did it increase or decrease over time? Why do you think these changes occurred?

That is one perspective of our biosphere. Now you will have the opportunity to show your understanding of the biosphere by completing the concept map below. This concept map is a web of the four spheres of earth and their relationship to each other.

Complete this concept map by dragging the images into their correct places.