Diagrams of environmental cycles are simplified to omit minor contributors. For example, the production of lime from limestone is not shown in the cycle for carbon (Figure , ). Which labelled category in the figure includes this process? Name two other processes that contribute to this category.

The gases that surround a star or planetary body are held in place by gravity and are referred to as the atmosphere. If gravity is high and the temperature of the atmosphere is low, a body is more likely to keep an atmosphere over time.

Limestone is a form of carbonate sedimentary rock that is mostly made of calcium carbonate, ${\mathrm{CaCO}}_3$and can be used to make lime or calcium oxide, $\mathrm{CaO}$.

As a result, the process of creating lime from limestone would fall under the category of inorganic sediments on the carbon cycle diagram (Figure , ).

The mining of dolomite, a sedimentary rock similar to limestone but with a different chemical makeup, falls into the same category.$\mathrm{CaMg}(\mathrm{C}{\mathrm{O}}_3{)}_2$. is the main component of dolostone, which is utilised in the building sector. There is also siderite,data-custom-editor="chemistry" ${\mathrm{FeCO}}_3$

which is a primary source of iron.

Therefore, inorganic sediments and other processes are mining dolomite and siderite.