Carbon is most abundant in the ___ and ___

A. Lithosphere

B. Core

C. Atmosphere

D. Cyrosphere

The Earth's system is divided in four subsystems: land (lithosphere), water (hydrosphere), air (atmosphere) and living things (biosphere).

Carbon is sixst most common chemical element on Earth.

The most carbon on Earth is stored in a surprising place: the ocean. This means that the most of carbon is stored in the lithospehere.

Carbon is most abundant in the core and in the atmosphere.