<span>Ore deposits of the element Aluminium do not require extreme concentrations because it is one of the most abundant elements in the earth's crust. </span><span>Aluminium is the most common metal in the </span><span>Earth's crust. </span>However aluminium can not be found free stand alone. All of the earth's aluminum<span> is combined with other elements to form compounds.</span>
The corecct anwser would be C mongolia. This is known as the 3rd most least densely populated countries in the world. with Greenland in 1st and Falkland Islands as 2nd.
