2007-01-29 10:16:40 · 7 answers · asked by Aykut O 2 in Travel ➔ Asia Pacific ➔ China
Plants
2007-01-29 10:21:54 · answer #1 · answered by ramarro smith shadow 4 · 0⤊ 0⤋
Plants, in converting carbon dioxide and water into simple sugars in photosynthesis, produce oxygen. No animals make oxygen. Animal (including human) respiration takes in oxygen and produces carbon dioxide. It is a plant/animal symbiotic relationship whereby each uses the other's waste materials. Most human activities do not make oxygen, but rather use oxygen (burning uses oxygen).
2007-01-29 22:16:02 · answer #2 · answered by Rick 4 · 0⤊ 0⤋
Plants breath in carbon dioxide and breath out oxygen, isn't it amazing how that works. Almost seems like it was part of a plan doesn't it.
2007-01-29 18:43:15 · answer #3 · answered by Get Real 4 · 0⤊ 0⤋
The whole combination with plants.
2007-01-29 18:51:51 · answer #4 · answered by Anonymous · 0⤊ 0⤋
plants, it's called photosynthesis. animals and humans only produce carbon dioxide.
2007-01-30 21:26:14 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Plants, I think.
2007-01-29 18:56:57 · answer #6 · answered by White Shooting Star of HK 7 · 0⤊ 0⤋
trees
2007-01-29 21:40:55 · answer #7 · answered by ara2680 2 · 0⤊ 0⤋