Historically, the use of wells appears in the . A)
Old Stone Age
B)
New Stone Age
C)
Bronze Age
D)
Iron Age
E)
Copper Age
Historically, the use of wells appears in the .
A)
Old Stone Age
B)
New Stone Age
C)
Bronze Age
D)
Iron Age
E)
Copper Age

The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?