Answers

2014-06-15T15:13:41+08:00
When you inhale, oxygen enters or lungs and when you exhale, carbon dioxide leaves our body through our lungs.
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2014-06-15T15:29:03+08:00
When you inhale, you will get oxygen came out from the plants and then if you exhale, youwill excrete carbon dioxide and plants will take it as their food.

i hope i did well     :)


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