👉 The term "understratums" refers to a layer of soil that is beneath the surface, typically in the form of sand or gravel. This layer can be found on top of rocks and other surfaces, and it provides support for plants and animals below it. Understratums are also called rock strata or sedimentary layers.
Outrageously Funny Search Suggestion Engine :: Understratum
What is the definition of Understratum? 🙋
👉 In geology, an understratum is a layer of rock below another more坚硬的岩层。It is typically less dense than the parent rock and may be composed of organic material. The understratum is usually less permeable to water and gases than the parent rock, which means that it can hold more water or gas in a given volume compared to its surrounding rock. The term "understratum" was originally used by geologists to refer to the layer of rocks below the parent
