I've learned what is carbon cycle and how it works. First, animals breathe oxygen and breathe out carbon dioxide. Then carbon flies to the tree or a plant. Then the tree make an oxygen that we breathe. Then we started to polute it even more by building towers and big cities.Then it's all starts all over again. I also have learned that polar bears, pengins and other species are dying because of global warming. So to stop it the things you need to do are: ride a bycicle instead of cars, recycle,turn off the lights when you leave etc. Bye.
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