關於science問題 F.2

2010-08-25 8:00 pm
Living things (including green plants) take in (1)........................ gas for breathing and give out (2)........................ gas. Green plants use (3)........................ gas for photosynthesis and give out (4)........................ gas. This will make the amount of these two gases blance in nature.

回答 (2)

2010-08-25 8:23 pm
✔ 最佳答案
(1) Oxygen
(2)Carbon dioxide
(3)Carbon dioxide
(4)Oxygen
參考: myself
2010-08-25 10:30 pm
1) O2, Oxygen
2) CO2, Carbon dioxide
3) CO2, Carbon dioxide
4) O2, Oxygen


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