<span>ore
An ore is a type of mineral or rock which has a high enough concentration of a desirable element such that it's economical to extract that desired element. This means that the actual concentration of metal in an ore varies quite dramatically depending upon the metal. For instance, Bauxite, which is the ore for aluminum contains approximately 15% to 25% aluminum. But for gold, it's not uncommon to profitably extract 1 ounce of gold from several tons of rock.</span>
Answer:
Manchu Picchu
Explanation:
Machu Picchu became a wonder of the world in 2007.

The Correct choice is C
<u>Demography</u> is the study of human populations and how they grow or decline.
It would be B. The Alps. The Alps one of the only mountain ranges in the world tall enough to be classified as "Highland climate," and certainly the only one big enough out of the list mentioned to be classified that way.
Answer:
A regular decagon has 10 reflectional symmetries.
A regular decagon is a two-dimensional shape that has 10 sides of equal length