Hello the answer is c i just took the test
The earth's core is divided into two layers: the outer and inner core. The outer core borders the Earth's mantle and is approximately 1,430 miles<span> in thickness. The inner core has a thickness of 750 miles, giving the core a combined thickness of 2180 miles. lol....
I hope this helps!!! :)</span>
Protoplasm is the organic substance making up the cell of all living things
The answer would be A. Rock Formation because after the crust is cooling it starts to form a new rock formation, which would be the next step in the project. Hope this helped! :D
B they are produced from nitrogen gas (N).