* Terrestrial: This refers to the Earth, as opposed to the sea or air.
* Solid: Land is a solid surface, unlike water or air.
However, depending on the context, there are many other pairs of words that could work!
* Terrestrial: This refers to the Earth, as opposed to the sea or air.
* Solid: Land is a solid surface, unlike water or air.
However, depending on the context, there are many other pairs of words that could work!