Why dont we breathe out much carbon dioxide but quite a bit of oxygen?
回答 (1)
2016-02-07 6:26 pm
✔ 最佳答案
Because very little CO2 is produced and little O2 is used during the time it takes to take another breath.The situation is different for, say, whales who can hold their breath for long periods of time.
收錄日期: 2021-05-01 16:15:25
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160207101137AAKqkWY