Calcium oxide as a catalyst for one of the sundry species of interest because they can find natural sources of calcium such as easy as a shell. Crab shell Shell eggs
Calcium oxide as a catalyst heterogeneous species that deserve attention. As can easily find natural sources of calcium such as egg shells, crab shells.
Calcium oxide as a heterogeneous catalyst type that get attention. Because it can be easily influenced by nature, such as calcium, shell, shell crab shell.