Thursday, September 10, 2009

The carbon cycle

The cabon found in organic compounds is included in both the abiotic abd biotic parts of the ecosystem.carbon is a building block of both plant and naimal tissues.In the atmosphere ,carbon occurs as carbon dioxide.In th epresence of sunlight ,plants take up carbon dioxide from the atmosphere through their leaves.The plants combine carbon dioxide with water ,which is absorbed by their roots from the soil .In the presence of sunlight they are able to form carbohydrates that contain carbon .This process plants releases oxygen in to the atmosphere on which animals depend for their respiration ,thus plants help in regulating and monitoring the percentage of oxygen and carbon dioxide in the Earth's atmosphere.All of manking depends on the Oxygen generated through this cyle.IT also keeps tje co2 at a cceptable levels.

No comments:

Post a Comment