Go on! Check out the next lesson and put into practice what you learn:
https://www.khanacademy.org/science/biology/ecology/biogeochemical-cycles/a/the-carbon-cycle

How water flows on Earth.

Watch the next lesson: https://www.khanacademy.org/science/biology/ecology/biogeochemical-cycles/v/carbon-cycle

Missed the previous lesson? Watch it here: https://www.khanacademy.org/science/biology/ecology/biogeochemical-cycles/v/biogeochemical-cycles

Ecology on Khan Academy: Why are polar bears only found in the Arctic? Why does mold grow in your shower and not (hopefully) in your sock drawer? Learn how ecologists study the interactions between organisms and their environment, and how these interactions affect where and how many different types of organisms live.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and out of the classroom. We cover math, science, computer programming, history, art history, economics, and more. Our math assignments guide learners from preschool to calculus using cutting-edge adaptive technology that identifies strengths and learning gaps. We’ve also partnered with institutions like NASA, the Museum of Modern Art, the California Academy of Sciences, and MIT to deliver specialized content.

Free. For everyone. Forever. #YouCanLearnEverything

Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy

Please feel free to connect and share this video with your friends and family if you find it useful.