| 100% | SPATIAL | 7 | Existing outside the earth's atmosphere |
| 59% | AIR | 3 | Content of the Earth's atmosphere |
| 56% | ARGON | 5 | .93% of the earth's atmosphere |
| 54% | TROPOSPHERE | 11 | Lowest layer of the Earth's atmosphere |
| 54% | NITROGEN | 8 | Abundant element in the Earth's atmosphere |
| 53% | OZONE | 5 | Colourless gas which forms a layer within the Earth’s atmosphere |
| 53% | ARGON | 5 | About 1% of the Earth's atmosphere |
| 53% | ARGON | 5 | Roughly 1% of the earth's atmosphere |
| 52% | NITROGEN | 8 | Most prevalent gas in the Earth's atmosphere |
| 52% | METEOR | 6 | Space rock that enters the Earth's atmosphere |
| 51% | IONOSPHERE | 10 | Layer of the earth's atmosphere that lies above the mesosphere |
| 51% | SPACEWALK | 9 | Extravehicular activity outside Earth's atmosphere |
| 50% | SEAWEED | 7 | Major source of oxygen in the earth's atmosphere |
| 50% | ARGON | 5 | Most abundant noble gas in the earth's atmosphere |
| 49% | EXOSPHERE | 9 | The outermost part of the Earth's atmosphere |
| 48% | ARGON | 5 | It makes up nearly 1% of the Earth's atmosphere |
| 47% | OZONE | 5 | Colourless gas which forms a layer within the Earth's atmosphere |
| 45% | ARGON | 5 | Third-most abundant gas in the Earth's atmosphere, after nitrogen and oxygen |
| 45% | EONS | 4 | The Earth has existed for four of these time periods |
| 44% | ARGON | 5 | Noble gas that makes up almost 1% of the Earth's atmosphere |
| 44% | ARGON | 5 | Noble gas that makes up nearly 1% of the earth's atmosphere |
| 44% | CORE | 4 | The earth's center |
| 43% | CORE | 4 | The earth's hot center |
| 43% | ASIA | 4 | The Earth's largest continent |
| 43% | AIR | 3 | Earth's atmosphere |
| 43% | INNERCORE | 9 | The earth's is largely iron |
| 43% | LAYER | 5 | The Earth's crust or mantle |
| 42% | LAYERS | 6 | The troposphere, stratosphere and mesosphere, for the Earth's atmosphere |
| 42% | HYDROSPHERE | 11 | All the Earth's water |
| 42% | CRUST | 5 | Earth's outside |