is air renewable
1 answer
Well, for example the oxygen in the air is constantly being removed and replenished. When we animals breathe it in or burn it we combine it with carbon in our food or fuel to make carbon dioxide. When a green plant gets the carbon dioxide it strips the carbon out during photosynthesis and returns oxygen to the air using the carbon for wood or leaves. Needless to say you better keep that balanced. Too much burning and breathing and too few plants means less oxygen and more carbon dioxide.