Keyword · US · updated 2026-05-25
breathing oxygen exhaling carbon dioxide
- Monthly searches
- 40
- CPC
- $0.00
- Competition
- 0
Also searched
- what does the respiratory system do 4,400
- what do we breathe out 2,400
- human breathing system 2,400
- human respiratory system 2,400
Monthly average for US, from the Google Ads API: the same numbers you'd see in Google Ads.
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Related keywords
Keywords with overlapping search results. Similar volume and high overlap means the same search intent, so you can target either.
| Keyword | Volume | CPC | Overlap |
|---|---|---|---|
| what does the respiratory system do | 4,400 | $0.00 | 13/20 |
| what do we breathe out | 2,400 | $0.00 | 19/20 |
| human breathing system | 2,400 | $0.00 | 14/20 |
| human respiratory system | 2,400 | $0.00 | 14/20 |
| respiratory system human | 2,400 | $0.00 | 13/20 |
| how does the respiratory system work | 1,900 | $6.92 | 14/20 |
| how does respiration work | 1,900 | $14.10 | 13/20 |
| breathe in oxygen breathe out carbon dioxide | 50 | $0.00 | 13/20 |
| when we breathe in oxygen what comes out | 50 | $0.00 | 13/20 |
| do we breathe oxygen or carbon dioxide | 40 | $0.00 | 13/20 |
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