Granite is a type of igneous rock. What determines the size of the crystals that form in a sample of granite? A. how large the sample is B. how quickly the rock cooled C. how many times those minerals have been in granite before D. how many impurities are in the granite

i believe that it is a exoplanet

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

може ли да зареждате повече информация, моля