| consist of helium | 0.68 |
| consist of co2 | 0.52 |
| support life | 0.46 |
| escape into space | 0.42 |
| surround the planet | 0.42 |
| undergo differential ro… | 0.39 |
| absorb some of the ener… | 0.39 |
| bleed into space | 0.39 |
| act like blanket | 0.37 |
| be a layer of gases | 0.35 |
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| water vapor | 0.51 |
| water vapour | 0.47 |
| the highest wind speeds | 0.37 |
| carbon monoxide | 0.31 |
| free oxygen | 0.31 |
| ozone | 0.29 |
| iron | 0.25 |
| strong vertical air cir… | 0.25 |
| other chemicals | 0.25 |
| cloud | 0.25 |
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| 77% nitrogen | 0.29 |
| composed of hydrogen | 0.80 |
| composed of nitrogen | 0.76 |
| composed of carbon diox… | 0.76 |
| composed of helium | 0.71 |
| lost | 0.63 |
| composed of ammonia | 0.53 |
| composed of water | 0.52 |
| formed | 0.45 |
| warmed | 0.44 |
| studied | 0.42 |
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