Total biomass in a region is quantified by measuring the mass of all the plants and in a population, habitat, or region.

not sure if this is what you'r looking for eubacteria and archaebacteria

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this

answergaba;