What Is an Oasis?
Many deserts are almost totally without water. Few plants can live in the dry, moving sands of these deserts. An oasis in the desert is a pl
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Many deserts are almost totally without water. Few plants can live in the dry, moving sands of these deserts. An oasis in the desert is a pl
Not far below the surface of the land there is a zone where the soil is saturated (filled) with water. The topmost level of this saturated z