Answer:
D a photograph
Explanation:
because it help to know what happened through the help of picture. it also help to increase memory power..
Continental crust is 2.7-3.0
Oceanic crust is 3.0-3.3
Mantle is 3.3-5.7
Outer core is 9.9-12.2
Inner core is 12.6-13.0
Well the trees are the fuel for a fire and the sun can start a wild fire so I would probably say the things on the ground but I’m not completely sure
