Compare the height of the atmosphere to the thickness of the geosphere

The geosphere extends from surface to the center of the earth. Thus, the thickness of Geosphere is same as the radius of the Earth. Thus, when compared to the thickness of Geosphere (thickness or radius of the Earth), the height of atmosphere is found as very shallow layer (thin layer).

my mind is an enigma

which elements do geologists measure to determine the age of an organism’s remains? check all that apply.

carbon-14

nitrogen

carbon-12