| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| biogas from waste and renewable resources | 1.92 | 1 | 5174 | 50 |
| biogas production from waste | 1.88 | 0.4 | 4309 | 1 |
| renewable energy from biogas | 1.58 | 0.3 | 3993 | 43 |
| why is biogas a renewable resource | 1.29 | 0.7 | 6762 | 21 |
| biogas from vegetable waste | 1.94 | 0.8 | 6163 | 52 |
| biogas from organic waste | 1.13 | 0.6 | 5395 | 9 |
| how biogas is renewable | 0.58 | 0.7 | 8126 | 71 |
| biogas as a renewable source of energy | 1.15 | 0.9 | 8576 | 20 |
| biogas from solid waste | 0.7 | 0.1 | 6942 | 26 |
| biogas production from organic waste | 1.12 | 0.4 | 4745 | 55 |
| biogas production from agricultural waste | 0.24 | 0.1 | 4504 | 88 |
| biogas and renewable natural gas | 0.68 | 0.3 | 7913 | 13 |
| biogas generation from food waste | 1.41 | 0.5 | 7812 | 46 |
| biogas production from waste biomass | 1.33 | 0.8 | 8367 | 50 |
| biogas from food waste research | 1.29 | 0.7 | 409 | 96 |
| biogas from waste food | 0.97 | 1 | 5063 | 60 |
| agricultural waste as biogas | 1.7 | 0.3 | 547 | 52 |
| biogas production from wastewater treatment | 1.88 | 0.8 | 4011 | 93 |
| biogas plant using food waste | 0.12 | 0.5 | 2043 | 82 |
