Compare the following specimen pairs graniterhyoliteandesitedioriteand basaltgabbro. are there differences in composition between the rocks in each pair?

Yes, there are differences in composition between the rocks in each pair. Granite and rhyolite are both high in silica and primarily composed of quartz and feldspar, but granite is intrusive (cooled slowly underground) while rhyolite is extrusive (cooled quickly on the surface). Andesite and diorite, on the other hand, have intermediate silica content and are characterized by the presence of plagioclase feldspar, with diorite being intrusive and andesite being extrusive. Lastly, basalt and gabbro are both low in silica, with basalt being the extrusive counterpart of gabbro, which is intrusive; basalt is rich in pyroxene and olivine, while gabbro has a similar mineral composition but forms larger crystals due to slower cooling.