The Earth is a group of parts that include air, water, land, and life

The Earth Cycle

biosphere

Explanation:

The biosphere conists of all living things and it includes air , water , land and life.

i think that the best answer would be c.

tell me if im wrong : )

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides