What is the difference between granite and rhyolite

The difference is rhyolite has much finer crystals. ... Rhyolite is an extrusive igneous rock having cooled much more rapidly than granite giving it a glassy appearance. The minerals that make up rhyolite are quartz, feldspar, mica, and hornblende. Gabbros are dark-colored, coarse-grained intrusive igneous rocks.

This is from the website volcano.oregonstate.edu/book/export/html/1055

the answer is the first option

explanation:

just googled it m8. not that hard

lol

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.