THE WORD "IT" IN BOLD IN PARAGRAPH 2 REFERS TO .A.THE EARTH...
43.
The word "It" in bold in paragraph 2 refers to .A.
The EarthB.
The mantleC.
The crustD.
The core43.
The word "It" in bold in paragraph 2 refers to .A.
The EarthB.
The mantleC.
The crustD.
The core