Nowadays, and after fresh water, <em>Sand</em> is the most used natural resource on the planet.
Sand is a loose, fragmented material, comprised of tiny particles of scattered rocks, shells, corals and other minerals.
The most common sand is comprised of <em>quartz</em> and feldspar, which are high in silica content, stuffs used to make glass; and to produce semiconductor silicon chips for microprocessors.
Sand is the raw material used to produce integrated circuits and the glass for contact lenses.
And Sand processing has grown into a multi billion dollar business, turning the role of Sand in our lives widespread farther away our beloved beaches.
Unification of east and west germany
<em>(1.) Ural Mountains</em>
<em>Hi ! </em>
<em>The </em><em><u>Ural Mountain</u></em><em>s is the correct answer</em>
<em>
The Ural Mountains are the border between Europe and Asia</em>
<em>Good luck !</em>
The answer for your question is house holds
