Steroid

On Earth there are different way nature recycle,of them is the oxygen cycle we hardly notice how oxygen is recycled, the air we breathe contains 21% oxygen and this little amount allow us to survive.the oxygen cycle is an amazing system which keeps billion of living organisms on Earth alive,the oxygen cycle involves 4 stages(1)we breathe in oxygen and breathe out carbon dioxide CO2. (2)plant make use of the carbon dioxide we breathe out to manufacture their food, and this process is called photosynthesis.(3)in return, plant give out carbon dioxide into the atmosphere.that is why there is a need for more plantation of trees ,so that there will be a balance between oxygen and carbon dioxide.let take action in planting more trees 🌲 to make our planet more Greener.watch the video below to see some illustration of the oxygen cycle. What if there wasn't oxygen cycle? Drop your comments.