The first one is the answer i think dont quote me <span />
Pillow Talkin by Lil Dicky explains it all
Explanation:
Looking at the Ecological concept of Modern Ecology
we have
Atmosphere, Lithosphere, Biosphere, Niche, Environment, Habitat, Population, Ecosystem and Biotic community
Hydrosphere and Geosphere are not part
so Atmosphere is the correct answer
Cell, atom, molecule, electron, proton
Can you give anymore information?
