Without changing the Gizmo, list the carbon reservoirs from largest to smallest.

Answer: Without changing the gizmo, the list of carbon reservoirs from largest to smallest are:

1. Atmosphere

2. Biota

3. Hydrosphere

4. Solid earth

The carbon is present in different regions such as the hydrosphere, atmosphere, lithosphere and the biosphere.

The maximum or the highest amount of carbon is present in the large oceans, which are derived from the atmospheric carbon dioxide and also due to the death of the various marine organisms.

The second-highest amount of carbon is stored in the lithosphere. These are accumulated when the dead plants and trees were buried thousands and millions of years ago under the earth's surface. This turned into coal in many regions on earth, by undergoing the process of carbonization.

The third highest carbon content is found in the body of the living plants and animals. Carbon dioxide is eliminated from the animal body during respiration and the same carbon dioxide is again absorbed by the plants.

The atmosphere holds the minimum amount of carbon dioxide, which is approximately 410 parts per million.