The school gym needs 50 cubby holes to store supplies. The gym has an empty wall where the storage space could be bulit, and the budget for the project is $500. How could the school find the best solution for designing the storage space?

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

this might