Solid earth refers to "the earth beneath our feet" or terra firma, the planet's solid surface and its interior. It excludes the Earth's fluid envelopes, the atmosphere and hydrosphere (but includes the ocean basin), as well as the biosphere and interactions with the Sun.
Solid earth refers to "the earth beneath our feet" or terra firma, the planet's solid surface and its interior. It excludes the Earth's fluid envelopes, the atmosphere and hydrosphere (but includes the ocean basin), as well as the biosphere and interactions with the Sun.
Source: Wikipedia "Solid earth" · CC BY-SA 4.0
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