Is the desert a visible layer of Earths upper mantle?

Continents are on the crust of the earth. The crust itself is made of continents and ocean floors. The mantle lies below this. The upper mantle is called the asthenosphere. The continents are made of silica and aluminium (sial) and ocean floors of silica and magnesium (sima). read more

The deserts of the world are an arid part of the surface of the Earth, as are mountains, valleys, and are not an exposed layer of the Earth’s mantle. read more

Three layers of the Earth are The Core, The Mantle and The Crust. These three layers are further divided into a number of sub-layers like oceanic and continental crust, upper and lower mantle and outer and inner core. read more