Q247
Which of the following pairs of metals are supposed to constitute the internal core of the earth?
A.
Chromium and Iron
B.
Magnesium and Lead
C.
Iron and Copper
D.
Nickel and Iron
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
The outer core is believed to be made up of iron nickel is because of the theory of paleomagnetism. The change in the magnetic poles all through different geological eras.