| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | mantle | Geology | The Earth's mantle is a layer of hot, solid rock beneath the Earth's crust, extending to a depth of about 2,900 kilometers. | 1 |
| 2 | mantle | geology | The mantle is the middle layer of the Earth, located between the crust and the core, and is mostly solid rock. | 1 |
| 3 | mantle | geology | A layer of the Earth's interior between the crust and the core, consisting mainly of solid rock. | 1 |