Which of the following helps to create the
题型:单项选择题
问题:
Which of the following helps to create the Earth's magnetic fields
A.Its blue waters.
B.Its nitrogen atmosphere.
C.Its molten metal core.
D.The Moon.
Which of the following helps to create the Earth's magnetic fields
A.Its blue waters.
B.Its nitrogen atmosphere.
C.Its molten metal core.
D.The Moon.