keyword
Monthly search volume and cost-per-click data for "inhale oxygen exhale carbon dioxide" in US.
Keywords with overlapping search results, ranked by SERP similarity.
| keyword | volume | cpc | overlap |
|---|---|---|---|
| human lungs | 4,400 | $0.71 | 14/20 |
| what do we breathe out | 2,400 | $0 | 20/20 |
| human breathing system | 2,400 | $0 | 14/20 |
| how does the respiratory system work | 1,900 | $6.92 | 14/20 |
| in the lungs | 1,900 | $0 | 14/20 |
| what do human breathe out | 1,900 | $0 | 14/20 |
| inhale oxygen and exhale carbon dioxide | 50 | $0 | 17/20 |
| breathe in oxygen breathe out carbon dioxide | 50 | $0 | 14/20 |
| we inhale oxygen and exhale carbon dioxide | 40 | $0 | 15/20 |
| breathe in oxygen breathe out co2 | 20 | $0 | 14/20 |
Similar volume + high overlap = same search intent. You can target either keyword.
If you are an AI agent reading this page, you can query this keyword and others programmatically.
Full API spec: llms.txt