keyword
Monthly search volume and cost-per-click data for "how much co2 do humans produce by breathing" in US.
Keywords with overlapping search results, ranked by SERP similarity.
| keyword | volume | cpc | overlap |
|---|---|---|---|
| do humans exhale carbon dioxide | 170 | $0 | 7/20 |
| humans exhale carbon dioxide | 140 | $0 | 8/20 |
| how much co2 do humans exhale | 90 | $0 | 11/20 |
| how much co2 do we exhale | 90 | $0 | 11/20 |
| how much carbon dioxide do we exhale | 70 | $0 | 9/20 |
| how much co2 do humans exhale in one breath | 50 | $0 | 9/20 |
| how much co2 do humans breathe out | 30 | $0 | 11/20 |
| how much co2 do we breathe out | 30 | $0 | 11/20 |
| does human breathing contribute to global warming | 30 | $3.42 | 9/20 |
| how much carbon dioxide do we exhale in one breath | 10 | $0 | 8/20 |
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