Which of Earth's systems are humans part of? A) atmosphere
B) the hydrosphere
C) the part of the biosphere that doesn't include the biota
OD) the biota portion of the biosphere

C) The part of biosphere that doesn't include the biota

Explanation:

Humans are part of the biosphere, although they are increasingly responsible for the creation of systems that may be largely artificial (such as cities).

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.